Magic Lantern Forum

Showcasing Magic Lantern => Share Your Photos => Topic started by: Danne on July 30, 2013, 09:05:45 PM

Title: Thread photos dual iso
Post by: Danne on July 30, 2013, 09:05:45 PM
A thread to share photos taken with dual iso. If you want to try and learn how please enter this thread here. http://www.magiclantern.fm/forum/index.php?topic=7139.msg62864;topicseen#msg62864

Some more examples of what dual iso can achieve. The shadows pop out like never before. Mostly used interval between 100-1600 and ETTR to find exposure settings. Works perfect most of the time. From a visit in Copenhagen. I used a 5d mark 3.

*updated with more pics and with 900px width, maximum forumsize.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fcjfdqpnyd%2F001.jpg&hash=e9da3e5dc450f2552fe0e70d94721369)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fqjhfiupol%2F002.jpg&hash=4087b4fc4247a0fcd2e0e932cc857466)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F94x7aksjp%2F003.jpg&hash=3d5ffee18591e1880c04f29a2ae84850)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F579xl65qd%2F004.jpg&hash=83fc83607d7991941410df95501882cd)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Ft8gtmmkjp%2F005.jpg&hash=89759c5ed143aa332384cd79c3b589e2)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F55zzrr3wl%2F006.jpg&hash=5dc73e5a700670ab92aacf511949eb80)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fraa5oms1x%2F007.jpg&hash=20ec9b5e17a8f65786f148953883a532)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fjiy13tdad%2F008.jpg&hash=73d25379347b6d6af847f283e6d8c71b)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fsf8t7r3wl%2F009.jpg&hash=8f22afd3ebea1bd2e64c84f3e25af6bc)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F5rtk1locl%2F010.jpg&hash=53cc29c43d6aa7dbd191d65a62009f2a)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Ffqeio2xs5%2F011.jpg&hash=beedca66ebd93396d4d1ece935ccc087)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fr5azspa4l%2F012.jpg&hash=33ad5b2034e4ddd62f40002b9877fc29)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fiyj014k1x%2F013.jpg&hash=907deaa95eea93297eb6e8eb9b7b7c8c)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fg89o3xnd1%2F014.jpg&hash=b6377fb48b12a68f87e738e3b263b105)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F93ruuwg3p%2F015.jpg&hash=6f14c93cb058ce9342dfc25325df8fb3)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fgmb03j7gl%2F016.jpg&hash=2d9c233ba42f7e1e366d9cebb5f12942)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F8i2vysl1h%2F017.jpg&hash=86b198caaaed4c938627dfdee2c186da)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F5dwtfqtmt%2F018.jpg&hash=8f3e0714015091603cfb6520780bfa73)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F4n439yr9h%2F019.jpg&hash=4081fcb016ea2471c70815a17280f10f)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Flq6v5h7yd%2F020.jpg&hash=522e0cbbbaf9893a7a1c9e59b4cf24d9)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F4qxwq7wqt%2F021.jpg&hash=0711a031a56be21ff0a0dee89b9770ca)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F42p279y11%2F022.jpg&hash=7fec3f34898cbbf96e429be12bd43b2c)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fdoimnkp6t%2F023.jpg&hash=3be1411757ac6ee4fa0785149934edca)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fto1a74l8l%2F024.jpg&hash=5105e209fe1f82113d4bdb1da3498b06)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2F70m10z5ol%2F025.jpg&hash=8a046c2e359b2230371a65f246785aa4)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs8.postimg.cc%2Fjgiqupz0l%2F026.jpg&hash=4bfab34111b3f102582cb902a4c029e5)

Title: Re: Thread photos dual iso
Post by: nuklearpuppy on July 30, 2013, 09:35:21 PM
Very impressive!! I take it this will not work on my 550d??
Title: Re: Thread photos dual iso
Post by: Danne on July 30, 2013, 09:47:00 PM
unfortunately not. 5d mark 3 and 7d for now I believe
Title: Re: Thread photos dual iso
Post by: nuklearpuppy on July 30, 2013, 09:58:12 PM
Thanks for the quick reply :-) This is another really clever addition to ML. Happy snapping... 
Title: Re: Thread photos dual iso
Post by: Doyle4 on July 31, 2013, 01:40:21 PM
Very impressive!! I take it this will not work on my 550d??

5DMKiii and 7D only due to the sensor.

@Danne, Fantastic samples, great to see before and after,
Title: Re: Thread photos dual iso
Post by: ygor on July 31, 2013, 03:22:51 PM
Nice samples. Did you use 5dmIII or 7D?
Title: Re: Thread photos dual iso
Post by: Danne on July 31, 2013, 04:15:45 PM
Thanks!
Used a 5d mark 3 :)
Title: Re: Thread photos dual iso
Post by: nuklearpuppy on July 31, 2013, 04:56:33 PM
I'm loving the picture of the guy staring at them hot gurls. Lol. Superb!!!
Title: Re: Thread photos dual iso
Post by: Danne on July 31, 2013, 06:03:41 PM
I thought so too. Lucky shot :)
Title: Re: Thread photos dual iso
Post by: nuklearpuppy on July 31, 2013, 06:09:41 PM
I thought so too. Lucky shot :)
Indeed!! Keep em' coming!!
Title: Re: Thread photos dual iso
Post by: JackDaniel412 on August 01, 2013, 12:18:07 AM
Dual ISO test: ISO 100/1600, 5D Mark III

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fdcmakecreative%40dcmakecreative.altervista.org%2FML%2Fdual_iso_test.jpg&hash=dca3baa20f9dd8ea3996432786683fda)
Title: Re: Thread photos dual iso
Post by: Danne on August 01, 2013, 01:04:03 AM
Lovely picture! 14mm wideangle? What settings were used? Nice dynamic range :)
By the way. I got a warning before about too big pics. Think the max wide pixel size is 900px.
Thanks for posting
Title: Re: Thread photos dual iso
Post by: Audionut on August 01, 2013, 07:55:48 AM
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2FD46A9993.jpg&hash=30ddb7cda7cada796c23a3436ebd7a2e)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2FDual-ISO.jpg&hash=1ab6b7b2d3e692e7ad86914485b9fad2)
Title: Re: Thread photos dual iso
Post by: JackDaniel412 on August 01, 2013, 10:06:13 AM
Lovely picture! 14mm wideangle? What settings were used? Nice dynamic range :)
By the way. I got a warning before about too big pics. Think the max wide pixel size is 900px.
Thanks for posting

Thanks! It is a Sigma 12-24 @12mm fantastic lens but not very sharp...
Photo resized to 900px! Thanks!
Title: Re: Thread photos dual iso
Post by: a1ex on August 01, 2013, 10:17:08 AM
Would be very nice if you can upload some DNG files (or CR2 if you still notice aliasing artifacts).
Title: Re: Thread photos dual iso
Post by: Danne on August 01, 2013, 10:54:37 AM
@audionut. That is s beautiful picture. The light but too have those clean shadows really makes a massive difference. What settings were used?
@Alex. Will see what I can find. This function you created is unbelievably good when taking pictures.
Huge thanks
Title: Re: Thread photos dual iso
Post by: Audionut on August 01, 2013, 11:38:57 AM
@audionut. That is s beautiful picture. The light but too have those clean shadows really makes a massive difference. What settings were used?

100-800.  I like keeping midtone resolution.

And sorry I moved my OP.  Check over in the dual-ISO thread.
Title: Re: Thread photos dual iso
Post by: Danne on August 01, 2013, 11:45:41 AM
No prob, moved mine as well.
Will check in about the midtones. For now I,m all over the intervals trying to push it and see what ettr comes up with when doing its magic.
Title: Re: Thread photos dual iso
Post by: Greg on August 04, 2013, 04:07:57 AM
Great examples of dual iso.  ;)
Title: Re: Thread photos dual iso
Post by: ygor on August 05, 2013, 07:24:37 PM
My first test:

ISO 160/3200
Canon 7D
Canon 10-22 @10mm
f/8
1/320
ETTR + UniWB
Processed in LR 5

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-0iFu9FI63x0%2FUf_ccs7ujZI%2FAAAAAAAAAsg%2FkbDPaWVytlg%2Fw899-h599-no%2F_MG_3671-900px.jpg&hash=502df486d10cfb10fbb98dd78b005fb3)

100% Crop
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-UVDGfkvX4Ps%2FUf_cbwTpXiI%2FAAAAAAAAAsY%2FzbJ73ohRxqo%2Fw899-h489-no%2F_MG_3671%2Bcrop%2B100.jpg&hash=aedc41e29945e1aa6ed2077daab9e1b7)

I'm going to make more shots in the next days.
Title: Re: Thread photos dual iso
Post by: a1ex on August 05, 2013, 07:55:07 PM
Some tips:
- 160 is just 200 darkened
- on 7D you don't gain anything above 1600 => try 100/800 or 100/1600, but not more
- UniWB no longer makes sense, because you have raw zebras and histogram
Title: Re: Thread photos dual iso
Post by: ygor on August 05, 2013, 08:27:20 PM
Some tips:
- 160 is just 200 darkened
- on 7D you don't gain anything above 1600 => try 100/800 or 100/1600, but not more
- UniWB no longer makes sense, because you have raw zebras and histogram

Good tips.

I know ISO 160 is just 200 darkened, I used 160 because of the known vertical banding issue on 7D, while extreme recovering the shadows. It's weird, but you get less vertical banding on 160 rather than on 100 or 200, I don't know why, it just works for me.

I'll still try raw zebras and histogram, Dual ISO was my first ML test EVER : )
Title: Re: Thread photos dual iso
Post by: a1ex on August 05, 2013, 08:28:26 PM
You get banding with dual ISO? Can you upload a sample?
Title: Re: Thread photos dual iso
Post by: ygor on August 05, 2013, 08:33:58 PM
You get banding with dual ISO? Can you upload a sample?

I'll test it tonight and upload the tests. I'll test ISO 160, ISO 100, Non-Dual ISO and Dual ISO.
Title: Re: Thread photos dual iso
Post by: Mirazimov on August 05, 2013, 10:23:24 PM
Very nice function  :) what about canon 6D?
Title: Re: Thread photos dual iso
Post by: ygor on August 06, 2013, 06:21:51 AM
New tests, these are to compare quality.

Canon 7D
Canon 10-22 @10mm
f/8
30"
Highlights/shadows and some stuff processed in LR 5

The shots:
ISO 100
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-PkwhRQG82gc%2FUgBwiLGPhvI%2FAAAAAAAAAv4%2FX-W9yazLt5I%2Fw866-h577-no%2F_MG_3692.jpg&hash=fa609dc16f7ebf1a2e885373ed03ba8c)

ISO 160
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-Uc5ECaap69o%2FUgBwtxL0oHI%2FAAAAAAAAAxI%2FiZGw9iU1q3Q%2Fw866-h577-no%2F_MG_3693.jpg&hash=2a51086b3cec7b3c0df66ea5d32a01a2)

ISO 100/1600
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-pfhDoKXJBx4%2FUgBxWrFOAhI%2FAAAAAAAAA0Q%2FoyjkH8DCbw4%2Fw866-h577-no%2F_MG_3695.jpg&hash=cde266fbc6ca88b67f3d20102c4e0d8f)

ISO 160/1600
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh3.googleusercontent.com%2F-letJ_KBFFK4%2FUgBxF84D7hI%2FAAAAAAAAAy8%2FerA5uuieUnE%2Fw866-h577-no%2F_MG_3694.jpg&hash=cdef04215a48bf44860108ad2a620298)

Vertical Banding
ISO 100
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-1ybsTPuKl40%2FUgBwk__GUWI%2FAAAAAAAAAwc%2FlkZHcqsP_H0%2Fs577-no%2F_MG_3692-2.jpg&hash=328d49d4ce2f620ed0d95688481e1355)

ISO 160
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-VYiBV3vsR7E%2FUgBws5gALCI%2FAAAAAAAAAw0%2FS7mwgbN4Ubg%2Fs577-no%2F_MG_3693-4.jpg&hash=7437a014eef17cd61f0e83aad465d897)

ISO 100/1600
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-TH-GovEB_H0%2FUgBxV-dF1hI%2FAAAAAAAAAz0%2FK7y6beHt-PE%2Fs577-no%2F_MG_3695-2.jpg&hash=93c4e675adb47fefe0bc872ce1669ba6)

ISO 160/1600
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-U0FJRhq605I%2FUgBxFwKjgtI%2FAAAAAAAAAzA%2FG3cwFFmj2Go%2Fs577-no%2F_MG_3694-2.jpg&hash=a5a8dc438520078afaa98b30dddb9fcc)

For the next comparisons I picked the best quality to compare
Sharpness
ISO 160
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-3S6xbP6pUlA%2FUgBwtIQ0a6I%2FAAAAAAAAAw8%2F-pyRpwh1kjo%2Fs577-no%2F_MG_3693-2.jpg&hash=b42a0245da9fb5d5143469ad0e63bd46)

ISO 100/1600
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh6.googleusercontent.com%2F-Lm_ZGt-OqvQ%2FUgBxWMbWuAI%2FAAAAAAAAA0A%2FCOT5b4gT3eY%2Fs577-no%2F_MG_3695-4.jpg&hash=20d1adfd4289a97fab02855a914213bf)

Color Noise
ISO 160
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh6.googleusercontent.com%2F-TYPldRXCE-c%2FUgBws9JBfMI%2FAAAAAAAAAxA%2FbXtQv5ijXPA%2Fs577-no%2F_MG_3693-3.jpg&hash=01b0ef6ce88d3fea8e94a2daf8f18db7)

ISO 100/1600
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh6.googleusercontent.com%2F-Iq82g7NeK4I%2FUgBxWBmgeiI%2FAAAAAAAAAz8%2FYHDhnPgSHWA%2Fs577-no%2F_MG_3695-3.jpg&hash=9ee8ef2d8e825ef8130b7cc7f0b24cfc)

My thoughts about it:
1 - Without Dual ISO, ISO 160 has less vertical banding than ISO 100. But with Dual ISO I get no vertical banding at all, on both ISOs, that's good.
2 - Sharpness and color noise was way better without Dual ISO.

If you have some tip to improve my shots, I'd be glad if you share it : )
Title: Re: Thread photos dual iso
Post by: a1ex on August 06, 2013, 08:20:15 AM
Hm, the banding from ISO 100 looks familiar. Can you check whether it repeats every 8 pixels? If yes, I may have a fix.

For sharpness, it matters a lot whether the tested area was covered by both ISOs (where you get full resolution) or only one (where you get half resolution and possible aliasing and moire).

Can you upload the CR2 files?
Title: Re: Thread photos dual iso
Post by: Doyle4 on August 06, 2013, 11:01:24 AM
sooooooo jealous of this function!  :P

<---- 5Dmkii owner  :-[ ;D
Title: Re: Thread photos dual iso
Post by: ygor on August 06, 2013, 02:00:17 PM
Hm, the banding from ISO 100 looks familiar. Can you check whether it repeats every 8 pixels? If yes, I may have a fix.

For sharpness, it matters a lot whether the tested area was covered by both ISOs (where you get full resolution) or only one (where you get half resolution and possible aliasing and moire).

Can you upload the CR2 files?

Here are the CR2 files:
https://www.dropbox.com/sh/66pp28wpxtsrdv0/uQbrLi7cVE

You may check IMG_0021.CR2 for Vertical Banding.

And yes, the vertical banding repeats every 8 bits.
Title: Re: Thread photos dual iso
Post by: Magic 7D on August 12, 2013, 11:42:09 PM
Ok so I took some test pics, but not sure if I use it right.. judge and comment :)

@Danne, do you experience any trouble with the Auto ETTR when shooting non live view?
For me it's rather random, sometimes (only sometimes) it works fine, but most of the time it just lights up the LV and state Auto ETTR and then shut down right away without doing any changes... but when shooting in LV it works fine most of the time (sometimes I get rather random results though). I've been trying to search and read up on how to best use the Auto ETTR but haven't found much..

Anyhows here are my test pics all shoot at f/8 straight out from camera (obviously the DUALs have been converted) only added tiny sharpening in LR5. DUAL ISO set to 100/800

First ISO 100 1/100sek
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs21.postimg.org%2Ffm513m3yf%2FUAL4352.jpg&hash=82a4aad54572f9ad13a3d4c5ee092e18)

Then a DUAL one exposed for ISO 100 1/83sek
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs14.postimg.org%2Fns74fo6w1%2FUAL4350.jpg&hash=9bceb6cc63947dcc6f02349ffc2de885)

DUAL with Auto ETTR gave me ISO 100 1/41sek (seem to get some blown out highlights but maybe that should be fixed in post?)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs18.postimg.org%2F52k04apft%2FUAL4351.jpg&hash=05d5bd86c30f0e8c52f41ed552a2dac1)

Then I tried to make the ISO 100 and the DUAL Auto ETTR to look as similar as possible by changing exposure, pulling down highlights and boosting shadows, tweaked blacks and whites a bit too, everything else untouched. Oh sorry I had to change the white balance too as the colors were way different the DUAL one was a lot warmer (as you can see comparing the first 2 pics), sampled it from the same spot on both.

First out is the ISO 100
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs23.postimg.org%2Fqs0pqlsxn%2FAdjusted_2.jpg&hash=675bc80f551416e4028c34da2a1983ec)

Then DUAL Auto ETTR ISO 100/800
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs23.postimg.org%2Fcj5oma3sr%2FAdjusted.jpg&hash=6b1dcbc31e6cf97fc47949d13ed6477f)

Don't know really but almost seems like ISO 100 is coming out on top for the shadows? The DUAL ISO one is more vibrant though, a bit like boosted saturation! BUT maybe I'm using it all wrong? And I did shoot hand held so I know the frame isn't exactly the same (which I find a bit annoying, should have brought my 3pod)

So let me know what you think, tell me if I'm using it completely wrong etc, just shout anything at them :)
CR2s are available if anyone should be interested.

On a side note, imagine if we could have the duals processed in camera :)
Title: Re: Thread photos dual iso
Post by: Danne on August 12, 2013, 11:56:08 PM
Hi Magic 7D. Nice work with the dual iso tests. I think the best benefits with dual iso is that you are able to photograph motion. In static situations one can do hdr. However I feel dual iso gives more natural results than working with more files that often removes shadows etc to much.
Looking at your posted examples you probably could have done the picture with native raw. It,s in the extreme situations dual iso will work best.
I seldom use ettr at the moment, instead I set the ev+3 or 4 and than I simply meter the low iso in camera and mostly I get a good exposure for shadows in the ev+3 or +4 iso range. You could try to set the base iso at 100 and then the ev+ and switch to Av mode. Should give consistent results.  Ettr works ok most of the time. Often when I get some random results with ettr I simply do some readings on a dark area with no highlights to "wake up" the function. Usually after that I get good readings.
Please feel free to post some more examples and good luck
/D
Title: Re: Thread photos dual iso
Post by: ozcancelik on August 29, 2013, 12:16:35 PM
100/3200, 5D Mark III with Tamron 24-70 F2.8 VR

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FTFzi2Uk.jpg&hash=12dcc36aebcef7de6ae0284e1acc8828)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FbXK0JCd.jpg&hash=a7128a5a20c5120b68578bf093ce4bc6)
Title: Re: Thread photos dual iso
Post by: Walter Schulz on August 29, 2013, 12:36:10 PM
Well, the technical side apart: As a photographer I like the first one more than the second one.
Second one it's the opposite. The blown areas are just to disturbing.
Background issue with the second example.

Spoken as a geek/nerd: Impressive demonstration of dynamic range enhancement enable by latest developments.

Location?

Ciao
Walter
Title: Re: Thread photos dual iso
Post by: ozcancelik on August 29, 2013, 12:53:50 PM
Processed photos are here:
http://www.flickr.com/photos/ozcancelik/9621433392/
http://www.flickr.com/photos/ozcancelik/9618215003/

They are not processed.  Just highlight and shadow recovery. And I agree second photo's background silly :)

Location Antalya, Turkey

Well, the technical side apart: As a photographer I like the first one more than the second one.
Second one it's the opposite. The blown areas are just to disturbing.
Background issue with the second example.

Spoken as a geek/nerd: Impressive demonstration of dynamic range enhancement enable by latest developments.

Location?

Ciao
Walter
Title: Re: Thread photos dual iso
Post by: elijahalcantara on September 18, 2013, 06:22:52 AM
Beautiful shots! I wanted to try it so bad to my 5dmkiii but I think I may want to play it safe and wait for it to be stable
Title: Re: Thread photos dual iso
Post by: brapodam on September 20, 2013, 03:57:44 PM
Here's mine. It's my first time doing a night shot, though I've done sunsets before.

F6.3, 8s, ISO 100/1600 on the 60D

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3810%2F9836613745_9ac0fcf02a_c.jpg&hash=12419e8cc23d7f15571ea9d6f16d5cf5) (http://www.flickr.com/photos/jiewpeng/9836613745/)
Untitled (http://www.flickr.com/photos/jiewpeng/9836613745/) by |Panzer| (http://www.flickr.com/people/jiewpeng/), on Flickr
Title: Re: Thread photos dual iso
Post by: kirkt on October 12, 2013, 12:02:22 AM
I've been experimenting with the dual ISO feature for my 5DII for a couple of weeks.  A huge thanks to A1ex and the gang for giving me the ability to do Zero Noise in my camera in a single exposure.  Unreal!

This exposure was rendered in Raw Photo Processor (RPP) - RPP has no noise reduction.  Tonal and contrast edits in Photoshop.  Remarkable image quality, especially considering the magic that is going on in the image acquisition and conversion to DNG. 

kirk

cr2hdr log:

Code: [Select]
Input file     : _MG_0001.CR2
Canon EOS 5D Mark II detected
Full size      : 5792 x 3804
Active area    : 5634 x 3753
White level    : 12500
Black borders  : 158 left, 51 top
Black level    : 974
ISO pattern    : BddB GBRG
Noise levels   : 12.75 9.05 9.22 12.13 (14-bit)
Estimating ISO difference...
ISO difference : 3.18 EV (904)
Black delta    : -9.59
Interpolation  : mean23-chroma5x5-alias
Dynamic range  : 10.31 (+) 9.82 => 13.00 EV (in theory)
Matching brightness...
Looking for hot/cold pixels...
Hot pixels     : 16
Cold pixels    : 1
Full-res reconstruction...
ISO overlap    : 4.1 EV (approx)
Half-res blending...
Chroma filtering...
Building alias map...
Filtering alias map...
Smoothing alias map...
Noise level    : 5.08 (16-bit), ideally 4.86
Dynamic range  : 13.15 EV (cooked)
Black adjust   : -7
Output file    : _MG_0001.DNG

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-mQP2Rrn%2F0%2FX3%2F_MG_0001-RPPTIFF-X3.jpg&hash=72d5edca52571a642fecc23a6d0edd3f)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-XmXFPX3%2F0%2FX3%2F_MG_0001-2-X3.jpg&hash=57e1a9f7bb2234d968f35b1c351bb257)

Title: Re: Thread photos dual iso
Post by: painya on October 14, 2013, 06:35:11 AM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.upload.ee%2Fimage%2F3639859%2Fbest-6227-4.JPG&hash=12f321eabedb1354a4382b4f38e30053)
1600/3200 It effectively worked as a Graduated ND filter.
Title: Re: Thread photos dual iso
Post by: Danne on October 14, 2013, 07:20:57 AM
Some really nice examples lately :)
Title: Re: Thread photos dual iso
Post by: a1ex on October 14, 2013, 08:43:36 AM
@kirkt also has some cool examples and in-depth analysis here: http://photography-on-the.net/forum/showthread.php?t=1333150
Title: Re: Thread photos dual iso
Post by: Magic 7D on October 14, 2013, 05:30:51 PM

1600/3200 It effectively worked as a Graduated ND filter.

That pic is so nice, I've been tryin to get some star photos lately, but haven't got any good ones so far. Would you share the rest of your settings? f value, Time Value, camera, lens? Would be very thankful!
Title: Re: Thread photos dual iso
Post by: Walter Schulz on October 14, 2013, 05:47:16 PM
Would you share the rest of your settings?

He did. If you're using Firefox you may want to install Exif Viewer add-on (https://addons.mozilla.org/en/firefox/addon/exif-viewer).

Ciao
Walter
Title: Re: Thread photos dual iso
Post by: Danne on October 14, 2013, 05:50:15 PM
Those are good links from kirkt. I, m getting full use of dual iso in outdoor pictures photographing gardens and exteriors. Enfuseor hdr will create fuzziness in trees and other loose things. Saves my shutter aswell. Perfect with the dual prefix also
Title: Re: Thread photos dual iso
Post by: Magic 7D on October 14, 2013, 08:49:38 PM
He did.

Thanks Walter, that's a nifty add on.
Sorry for my ignorance though.. but I can't work out the focal length and the f value, it's probably staring me right in the face but I can't see it.. :-[
Title: Re: Thread photos dual iso
Post by: Walter Schulz on October 14, 2013, 09:04:23 PM
[...]focal length and the f value

That's not your fault, it's mine. Looks like a full manual lens without electric coupling therefore no lens data in Exif.

Ciao, Walter
Title: Re: Thread photos dual iso
Post by: painya on October 15, 2013, 02:38:25 AM
That pic is so nice, I've been tryin to get some star photos lately, but haven't got any good ones so far. Would you share the rest of your settings? f value, Time Value, camera, lens? Would be very thankful!
You're right it is a fully manual 14mm Rokinon fisheye lens. I had an F-stop of 2.8- wide open, and a 25 second exposure. It was shot with my 6d and in post I applied a light S curve and cropped to straighten. If you have any more questions feel free to PM me I would love to help.
Title: Re: Thread photos dual iso
Post by: kirkt on October 16, 2013, 04:05:47 PM
@kirkt also has some cool examples and in-depth analysis here: http://photography-on-the.net/forum/showthread.php?t=1333150

Hi A1ex, thanks for noticing.  Here is a comparison I did using the above image I posted earlier in this thread.  In the below post, I was comparing the dual ISO shot with a conventional raw taken at the same settings immediately after acquiring the dual ISO shot.  Not only is the visual annoyance of noise reduced, but the tonal and color fidelity in the deep shadows is maintained and permits more flexible post-production.

kirk

***

Here is another example, shooting a scene that would typically make me consider using an HDR approach.   This gives you an idea of the DR of the scene (about 13 stops) - the face is backlit and difficult to bring out without good data.  This rendering is hyper real, in that the interior light level was lower than is depicted here.  However, with good data, you can craft the image the way you want to!

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-XmXFPX3%2F0%2FX3%2F_MG_0001-2-X3.jpg&hash=57e1a9f7bb2234d968f35b1c351bb257)


Here is a composite of the raw and ML DNG in RPP.  Both files have been pushed 4 stops to expose the face in the shadow tones.  What a difference.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-4wQJKsn%2F0%2FX3%2Fcomp-X3.jpg&hash=190e1650124c567eb16cc12f6cc18038)

I posted a more detailed discussion about this comparison in the HDR section:

http://photography-on-the.net/forum/showthread.php?t=1333150 (http://photography-on-the.net/forum/showthread.php?t=1333150)

kirk
Title: Re: Thread photos dual iso
Post by: elijahalcantara on October 27, 2013, 10:37:25 AM
I gave it a test for portraits to see how it would affect midtones: (dng left side, I took 2 shots, one raw and another for dual-iso)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh3.googleusercontent.com%2F-2y3KfDwffWQ%2FUmzYcpwpFVI%2FAAAAAAAATrU%2F3XL760NNFyc%2Fw958-h538-no%2FScreen%2BShot%2B2013-10-25%2Bat%2B8.19.11%2BPM.png&hash=7ab288309e06562470071dbfdb079b2f)
Not that noticeable when zoomed out. Please ignore the color, must be some color adjustment I missed in editing.

Zoomed in:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh3.googleusercontent.com%2F-9N-W3y1PB9s%2FUmzYdPOoYJI%2FAAAAAAAATrc%2Fw1PI7eP7cX8%2Fw888-h548-no%2FScreen%2BShot%2B2013-10-25%2Bat%2B8.18.59%2BPM.png&hash=e741b740e43a7d4a1905abc4a2a9a4da)
Moire is kind of bothersome for the hair, in some shots it went really bad for the skin detail.

Interesting to note the banding in the sky:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh6.googleusercontent.com%2F-1TbeQBDqLNg%2FUmzYjEeGmbI%2FAAAAAAAATr8%2F_WUKXA9_IsA%2Fw829-h548-no%2FScreen%2BShot%2B2013-10-26%2Bat%2B3.39.21%2BPM.png&hash=d787c7dc6f358814d44ae88391b91ac1)

Dual-iso setting is 100/1600

I'm going to try a less powerful setting next, maybe a 100/400, I really don't like moire even in the midtones (maybe a lesser setting may prevent it? ). Kind of hard to fix it without affecting detail. I still like dual-iso, it has it's use for high contrast situations, but it would've been great for general use.

Title: Re: Thread photos dual iso
Post by: Audionut on October 30, 2013, 04:55:32 PM
I'm going to try a less powerful setting next, maybe a 100/400, I really don't like moire even in the midtones (maybe a lesser setting may prevent it? ). Kind of hard to fix it without affecting detail. I still like dual-iso, it has it's use for high contrast situations, but it would've been great for general use.

If you overexpose a regular image, you loose all detail to white.  With dual-ISO, you can overexpose highlight detail at the expense of less resolution in those highlights.  One of the primary goals when using dual-ISO is to consider where wanted detail, must retain full resolution.  So for skin tones, your base/recovery ISO must be set where the skin tones haven't been overexposed in either ISO. 

The same applies for the shadows.  Only in this case, we keep the full resolution but suffer the noise.

Interesting to note the banding in the sky:

I'm not sure what banding you are describing.  Note also you have described ISO 100/1600 but the LR panel it's ISO 400.
Title: Re: Thread photos dual iso
Post by: Audionut on October 30, 2013, 05:02:33 PM
Out practicing the Brenizer method and figured I'd see how dual-ISO could help.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A2288_stitch.jpg&hash=0307cc26141b1a8809da33a3d4d1dc75)


Source frame.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A2197.jpg&hash=fedd2ef934887bc215c66de764dd5207)

And the darker shadows.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A2224-2.jpg&hash=45cf77269fa8ec21ba37e54c52bb8a08)(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A2224.jpg&hash=aca5718f8448230c53de68b53f7246d2)
Title: Re: Thread photos dual iso
Post by: painya on November 03, 2013, 05:58:20 AM
These are compiled with the most recent cr2-hdr histmatch-3 I think. Tell me what you think!
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.upload.ee%2Fimage%2F3681930%2Fbleh-7428.JPG&hash=2565dedef082c79f11d1233c8e852a14) Amazing how It got the branches so well!
This one would be a complete silhouette without a 400/3200!
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.upload.ee%2Fimage%2F3681927%2Fbleh-7422.JPG&hash=3a6b762a495af7f210f783b788c567fe)
Too big... one sec
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on November 12, 2013, 10:10:10 AM
My first DUAL ISO test...

Special Thanks to A1ex and ML's crew!

ISO 100/1600
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm8.staticflickr.com%2F7435%2F10815928546_b861f0e065_c.jpg&hash=a9d35a2f1a0c9b4445fbeafede0c68ef) (http://www.flickr.com/photos/50068152@N05/10815928546/)

Colorgraded in LR5
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3745%2F10816020934_fe0d01bf0d_c.jpg&hash=613a4609e5524efb9ee642984a998df9) (http://www.flickr.com/photos/50068152@N05/10816020934/)
Title: Re: Thread photos dual iso
Post by: painya on November 13, 2013, 04:00:56 AM
My first test..(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2F%5Burl%3Dhttp%3A%2F%2Fwww.flickr.com%2Fphotos%2F50068152%40N05%2F10815928546%2F%5D%5Bimg%5Dhttp%3A%2F%2Ffarm8.staticflickr.com%2F7435%2F10815928546_b861f0e065_t.jpg&hash=226f82e5907dd8f0599b7a6627022a6b)[/url]
0Z5B3597 (http://www.flickr.com/photos/50068152@N05/10815928546/) by Sean Michael Jackson (http://www.flickr.com/people/50068152@N05/), on Flickr[/img]
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2F%5Burl%3Dhttp%3A%2F%2Fwww.flickr.com%2Fphotos%2F50068152%40N05%2F10816020934%2F%5D%5Bimg%5Dhttp%3A%2F%2Ffarm4.staticflickr.com%2F3745%2F10816020934_fe0d01bf0d_t.jpg&hash=ee26336dcbfc3a9ed5478ddab6986e80)[/url]
0Z5B3597-1 (http://www.flickr.com/photos/50068152@N05/10816020934/) by Sean Michael Jackson (http://www.flickr.com/people/50068152@N05/), on Flickr[/img]

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fsgxkylyrocmbln9%2F0Z5B3597.jpeg&hash=c732ee3a477a1f52378985fe8ee1c903)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fwww.dropbox.com%2Fs%2Ftj1wy6q3krjokrl%2F0Z5B3597-1.jpeg&hash=cd80289186e914fdfb497f2ed1026602)
Go to upload.ee and once you upload take the BB code directly from there
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on November 13, 2013, 09:16:30 AM
Thanks @painya!

I honestly thought Flickr would get the job done but their BB code wouldn't just work on this forum or maybe Im doing something wrong?

I'll use upload.ee for now although it only stays on for 120 days.

Thanks again.
Title: Re: Thread photos dual iso
Post by: blade on November 13, 2013, 05:40:55 PM
One of my first shots with dual iso...  The shadows were moving, so long exposure was not an option. Dual-iso worked verry well.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm8.staticflickr.com%2F7390%2F10834187075_dff18be6be_z.jpg&hash=92e7c903c1799760a0c7d42fe89ca4a8)
Glow 2013 Eindhoven the Netherlands
Title: Re: Thread photos dual iso
Post by: Danne on November 13, 2013, 06:12:52 PM
Beautiful shot Blade
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on November 14, 2013, 09:37:48 AM
Great shot Blade!

Here's another 100/1600 Dual ISO I took of her outside in the dark...

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3672%2F10896281774_9f442743b9_c.jpg&hash=5ebf5e5c2dffb6a0284974e1667ce9ab) (http://www.flickr.com/photos/50068152@N05/10896281774/)
Title: Re: Thread photos dual iso
Post by: Danne on November 16, 2013, 05:15:51 PM
A little something of the moon  :D

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs14.postimg.org%2Fqo8lt0npt%2FO42_A2223.jpg&hash=028289e1a0d833b7ecc1d160ca2b8a5a)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs14.postimg.org%2Fenn5sagb5%2FO42_A2223_8.jpg&hash=4a6df7158aeccc3db389cd6577b8c7d5)
Title: Re: Thread photos dual iso
Post by: Andy600 on November 30, 2013, 10:22:37 PM
One of my dual ISO favs shot on the 50D + an old 28mm M42 lens

Dual ISO 100/800 (8 shot stitched panorama)

The shop is located in a dark alley. (click for larger size)


(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.cubeupload.com%2Fh4yVbt.jpg&hash=9c9dcdc37199cfbe983347b4f7efac42) (http://i.cubeupload.com/h4yVbt.jpg)

I posted a few more in this thread http://www.magiclantern.fm/forum/index.php?topic=9323.0 (http://www.magiclantern.fm/forum/index.php?topic=9323.0)
Title: Re: Thread photos dual iso
Post by: Marsu42 on December 01, 2013, 02:13:20 AM
Dual ISO 100/800 (8 shot stitched panorama)

Why do you dual_iso a static scene - to save shutter cycles, or to save time on the whole pano? Strictly speaking this would be a scene for traditional bracketing which would give you lower noise and higher resolution in shadows/highlights.
Title: Re: Thread photos dual iso
Post by: Andy600 on December 01, 2013, 10:16:57 AM
Bracketing might be the traditional way to do things but ...1. No tripod with me 2. it took about 10 seconds to shoot 3. Dual ISO = less card space used (compared to 8x bracketed shots) 4. I was out shooting video that day 5. one less step in post (HDR merge) ;)

Title: Re: Thread photos dual iso
Post by: Africashot on December 01, 2013, 01:05:55 PM
Most of these shots here look really great, I don't know why but every-time it I give dual ISO a shot and use it together with the ETTR function (I lack the estimation of setting the split ISOs myself) my shots just tent to turn out extremely underexposed, often beyond recovery... this might be because I mostly tried in interiors where there might be too much difference between high and low lights, or it is simply too dark for a slowest shutter speed of say 1/60 for handheld... anyway these samples make me a bit jealous!
Title: Re: Thread photos dual iso
Post by: Andy600 on December 01, 2013, 02:02:56 PM
@Africashot - It's more luck for me. I tend to not use auto ETTR. I snap a few shots and if the preview looks very slightly over exposed I know I'm in the range. If they look dark I adjust the settings.
Title: Re: Thread photos dual iso
Post by: Africashot on December 01, 2013, 02:12:14 PM
Thanks! That might be a better way to go... I am so inexperienced with Dual ISO I was actually under the impression the preview wouldn't tell me much about the final image, also I thought it would probably be easier to recover shadows then highlights in this case, but this sounds like the way to go, I'll try it as soon as I get a chance!
Title: Re: Thread photos dual iso
Post by: 1% on December 01, 2013, 11:35:52 PM
Last bit of shooting its been pretty good, esp outdoors. I set minimum to 1/60 or like 1/250+ (driving), clip green... also the raw histo will tell you where you are in terms of ETTR so something like +/- 1 is alright without auto.... I also noticed the preview seems a lot darker than the shot when imported to light room. I was thinking a bunch of shots were way worse and then pleasantly surprised when editing.

Then again sometimes it will take a shot with bright light and  blow the hell out of it... I had this prob on waterfalls most noticeably, indoors it would occasionally pump the ISO up too high ignoring that I'm shooting a well lit subject for the background. Not sure if changing metering mode helps, it didn't seem to. So I'd have mad motion blur of something moving on a stage but the darkened background lit to daylight levels (bleh!)

When dual ISO was picked it usually made sense though unless it did the flip flop like 800/100, then my shot turns out half res for 90% of the pic and really dark, needing +5 in LR.

I.e. wtf did AETTR+DUAL do here:

http://www.filedropper.com/dual3285
Title: Re: Thread photos dual iso
Post by: a1ex on December 02, 2013, 06:58:49 AM
How did the previous shot (3284) look like?

If it was slightly overexposed, ETTR maybe didn't know how much to go back, and just underexposed by a large amount (so the next picture, 3286, should be pretty good).
Title: Re: Thread photos dual iso
Post by: a1ex on December 03, 2013, 05:12:25 PM
Some pics from me too (100/1600, ETTR):

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fa1ex.magiclantern.fm%2Fbleeding-edge%2Fisoless%2Fcomparison%2F2151-small.jpg&hash=75fb256b287ddfaa3a920b79c1a297db) (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2151.jpg)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fa1ex.magiclantern.fm%2Fbleeding-edge%2Fisoless%2Fcomparison%2F2157-small.jpg&hash=4e041db7b8703e4b346ee22b3507a6c0) (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2157.jpg)

Same pics from ISO 100: [1] (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2150.jpg) [2] (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2156.jpg)

Raw files: [1 iso100] (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2150.CR2) [1 iso100/1600] (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2151.DNG) [2 iso100] (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2156.CR2) [2 iso100/1600] (http://a1ex.magiclantern.fm/bleeding-edge/isoless/comparison/2157.DNG)

Blending info (I used this script (http://www.magiclantern.fm/forum/index.php?topic=7022)):

Code: [Select]
raw/2151.DNG:
--temperature=5000 --green=1 --saturation=2.5
    midtones: brightness level  7598 => exposure +0.75 EV
  highlights: brightness level 36122 => exposure -0.50 EV
     shadows: brightness level   245 => exposure +1.68,+2.62,+3.55,+4.48,+5.42,+6.35 EV

raw/2157.DNG:
--temperature=5500 --green=1 --saturation=2.5
    midtones: brightness level  3319 => exposure +2.12 EV
  highlights: brightness level 44011 => exposure +1.24,+0.37,-0.50 EV
     shadows: brightness level    61 => exposure +3.16,+4.20,+5.24,+6.28,+7.32,+8.36 EV

The improvement from 100 to 100/1600 is smaller than I thought; I can barely see any difference when looking at the pics on the monitor without zooming. Guess I should try something a little more extreme :D
Title: Re: Thread photos dual iso
Post by: 1% on December 03, 2013, 05:48:13 PM
Nice!

Here are the previous 2 from that sequence

http://www.filedropper.com/dual3283
http://www.filedropper.com/dual3284
Title: Re: Thread photos dual iso
Post by: Danne on December 03, 2013, 07:22:46 PM
Dang!
@Alex. The light on those pics are amazing
Title: Re: Thread photos dual iso
Post by: a1ex on December 03, 2013, 07:48:22 PM
Thanks;I've uploaded the raw files, if you want to try a different look.
Title: Re: Thread photos dual iso
Post by: Audionut on December 04, 2013, 06:46:00 AM
Thanks;I've uploaded the raw files, if you want to try a different look.

Looked to magenta for me.  The color noise is a killer  :P

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FRSqbjwD.jpg&hash=af7ccd2b00d1a1bac1b6b1026cfb3d24) (http://imgur.com/RSqbjwD)

The differences in the dual-ISO shot will be more apparent if your printing large.  There's lots of detail in the shadows also which helps to hide the noise.
Title: Re: Thread photos dual iso
Post by: jsoucy on December 23, 2013, 07:06:33 AM
here one photo I did with dual iso. If my memory is good, i was at 100/800 f25, 8sec + some ND

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fppcdn.500px.org%2F54595372%2F61ae7701038c139cf0e3d5e37c8388d06409654f%2F2048.jpg&hash=5d806e1d4030d8f852a6b5fc5a531054)
Title: Re: Thread photos dual iso
Post by: Virindi on January 01, 2014, 08:36:18 AM
Hi guys, a few I did on my 6D, I love it:

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm6.staticflickr.com%2F5505%2F11267939736_a0bd6e7639_b.jpg&hash=d62dff847cb3b840bc39fae8e1ca2718)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3816%2F11267770606_47a209bff2_b.jpg&hash=dde7bfbe7b3b74935f8bb91df412dd02)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3813%2F11267715955_2468295e83_b.jpg&hash=b484a68634b984910973ada64f1f68db)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3770%2F11267644946_1a90e8aba6_b.jpg&hash=ad1e9dfe25722f81f05e0d8bd1a2e0b7)
Title: Re: Thread photos dual iso
Post by: kirkt on January 02, 2014, 08:51:22 PM
ACR v8.3 with Magic Lantern dual iso DNG.  Pardon the JPEG compression in the sky.  One exposure at ISO 100-1600.

Before (ACR defaults):

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-JwCJqDk%2F0%2FO%2F_MG_0030ACRsharpscreen16before.jpg&hash=c6eaa3741950fb90cb39ae587e020ce4)

After:

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-tHKzHZq%2F0%2FO%2F_MG_0030ACRsharpscreen16post.jpg&hash=c3c4526d775b624cabaa518c9a7430eb)

ACR XML:

Code: [Select]
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.5-c002 1.148022, 2012/07/15-18:06:45        ">
 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about=""
    xmlns:crs="http://ns.adobe.com/camera-raw-settings/1.0/"
   crs:Version="8.3"
   crs:ProcessVersion="6.7"
   crs:WhiteBalance="As Shot"
   crs:AutoWhiteVersion="134348800"
   crs:AutoExposure="False"
   crs:AutoShadows="False"
   crs:AutoBrightness="False"
   crs:AutoContrast="False"
   crs:Saturation="0"
   crs:Sharpness="45"
   crs:LuminanceSmoothing="5"
   crs:ColorNoiseReduction="25"
   crs:ChromaticAberrationR="0"
   crs:ChromaticAberrationB="0"
   crs:VignetteAmount="0"
   crs:VignetteMidpoint="50"
   crs:ShadowTint="0"
   crs:RedHue="0"
   crs:RedSaturation="0"
   crs:GreenHue="0"
   crs:GreenSaturation="0"
   crs:BlueHue="0"
   crs:BlueSaturation="0"
   crs:Vibrance="0"
   crs:Defringe="0"
   crs:HueAdjustmentRed="0"
   crs:HueAdjustmentOrange="0"
   crs:HueAdjustmentYellow="0"
   crs:HueAdjustmentGreen="0"
   crs:HueAdjustmentAqua="0"
   crs:HueAdjustmentBlue="0"
   crs:HueAdjustmentPurple="0"
   crs:HueAdjustmentMagenta="0"
   crs:SaturationAdjustmentRed="0"
   crs:SaturationAdjustmentOrange="0"
   crs:SaturationAdjustmentYellow="0"
   crs:SaturationAdjustmentGreen="0"
   crs:SaturationAdjustmentAqua="0"
   crs:SaturationAdjustmentBlue="0"
   crs:SaturationAdjustmentPurple="0"
   crs:SaturationAdjustmentMagenta="0"
   crs:LuminanceAdjustmentRed="0"
   crs:LuminanceAdjustmentOrange="0"
   crs:LuminanceAdjustmentYellow="0"
   crs:LuminanceAdjustmentGreen="0"
   crs:LuminanceAdjustmentAqua="0"
   crs:LuminanceAdjustmentBlue="0"
   crs:LuminanceAdjustmentPurple="0"
   crs:LuminanceAdjustmentMagenta="0"
   crs:SplitToningShadowHue="0"
   crs:SplitToningShadowSaturation="0"
   crs:SplitToningHighlightHue="0"
   crs:SplitToningHighlightSaturation="0"
   crs:SplitToningBalance="0"
   crs:ParametricShadows="0"
   crs:ParametricDarks="0"
   crs:ParametricLights="0"
   crs:ParametricHighlights="0"
   crs:ParametricShadowSplit="25"
   crs:ParametricMidtoneSplit="50"
   crs:ParametricHighlightSplit="75"
   crs:SharpenRadius="+1.0"
   crs:SharpenDetail="67"
   crs:SharpenEdgeMasking="64"
   crs:PostCropVignetteAmount="0"
   crs:PostCropVignetteMidpoint="50"
   crs:PostCropVignetteFeather="50"
   crs:PostCropVignetteRoundness="0"
   crs:PostCropVignetteStyle="1"
   crs:PostCropVignetteHighlightContrast="0"
   crs:GrainAmount="0"
   crs:GrainSize="25"
   crs:GrainFrequency="50"
   crs:LuminanceNoiseReductionDetail="50"
   crs:ColorNoiseReductionDetail="50"
   crs:LuminanceNoiseReductionContrast="0"
   crs:ColorNoiseReductionSmoothness="71"
   crs:LensProfileEnable="1"
   crs:LensManualDistortionAmount="0"
   crs:PerspectiveVertical="0"
   crs:PerspectiveHorizontal="0"
   crs:PerspectiveRotate="0.0"
   crs:PerspectiveScale="100"
   crs:PerspectiveAspect="0"
   crs:PerspectiveUpright="0"
   crs:AutoLateralCA="0"
   crs:Exposure2012="+3.25"
   crs:Contrast2012="-13"
   crs:Highlights2012="-98"
   crs:Shadows2012="+68"
   crs:Whites2012="+27"
   crs:Blacks2012="+18"
   crs:Clarity2012="+31"
   crs:DefringePurpleAmount="0"
   crs:DefringePurpleHueLo="30"
   crs:DefringePurpleHueHi="70"
   crs:DefringeGreenAmount="0"
   crs:DefringeGreenHueLo="40"
   crs:DefringeGreenHueHi="60"
   crs:ConvertToGrayscale="False"
   crs:EnableToneCurve="True"
   crs:EnableSplitToning="True"
   crs:EnableColorAdjustments="True"
   crs:EnableDetail="True"
   crs:EnableLensCorrections="True"
   crs:EnableEffects="True"
   crs:EnableCalibration="True"
   crs:ToneCurveName2012="Linear"
   crs:CameraProfile="Fuji Velvia 100 - C"
   crs:CameraProfileDigest="24700B5C2F7DCA6E3C3614E98D27F55D"
   crs:LensProfileSetup="Custom"
   crs:LensProfileName="Adobe (Zeiss Distagon T* 2,8/15 ZE)"
   crs:LensProfileFilename="Canon (Zeiss Distagon T 15 f28 ZE) - RAW.lcp"
   crs:LensProfileDigest="6122CF970BEB6EB233856435A7BC72DD"
   crs:LensProfileDistortionScale="100"
   crs:LensProfileChromaticAberrationScale="100"
   crs:LensProfileVignettingScale="24"
   crs:HasSettings="True">
   <crs:ToneCurvePV2012>
    <rdf:Seq>
     <rdf:li>0, 0</rdf:li>
     <rdf:li>255, 255</rdf:li>
    </rdf:Seq>
   </crs:ToneCurvePV2012>
   <crs:ToneCurvePV2012Red>
    <rdf:Seq>
     <rdf:li>0, 0</rdf:li>
     <rdf:li>255, 255</rdf:li>
    </rdf:Seq>
   </crs:ToneCurvePV2012Red>
   <crs:ToneCurvePV2012Green>
    <rdf:Seq>
     <rdf:li>0, 0</rdf:li>
     <rdf:li>255, 255</rdf:li>
    </rdf:Seq>
   </crs:ToneCurvePV2012Green>
   <crs:ToneCurvePV2012Blue>
    <rdf:Seq>
     <rdf:li>0, 0</rdf:li>
     <rdf:li>255, 255</rdf:li>
    </rdf:Seq>
   </crs:ToneCurvePV2012Blue>
  </rdf:Description>
 </rdf:RDF>
</x:xmpmeta>

Here is the image with a little massaging in PS:

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-MmKM6tb%2F0%2FO%2F_MG_0030ACRsharpscreen16post-PS.jpg&hash=495da7ece882850ac753889ca5747194)

and a slightly different take using RPP and PS (RPP has no noise reduction).

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-PL4wcSH%2F0%2FO%2F_MG_0030again.jpg&hash=f009b71fb3130ae794aa7a1f11d396c2)

kirk
Title: Re: Thread photos dual iso
Post by: SelimTheDream on January 06, 2014, 09:23:28 PM
Hi all.  First of all I want to thank the ML team for coming up with such a wonderful software.  I have been a long time Canon user experimenting with Nikon at the moment but very soon I will be buying Canon 60D or 7D.  I am still in the decision process.

I wanted to ask about something that got me somewhat confused.  At the first few posts of this thread I remember reading "Dual ISO" feature was only available to 5D Mark 3 and 7D cameras.  But I saw Dual ISO pictures from 60D and even 50D cameras.  What am I missing exactly?

Main reason I am asking this question is buying a 60D is easier for me than buying a 7D.  I have used both cameras before and even though I want to buy the 7D my budget may not be able to afford it and I want to make sure I'll be fine with 60D. 
Title: Re: Thread photos dual iso
Post by: Walter Schulz on January 06, 2014, 09:25:43 PM
What am I missing exactly?

Something called "progress".

Ciao
Walter
Title: Re: Thread photos dual iso
Post by: 4cc3ss on February 02, 2014, 05:47:30 PM
I need to venture out my cave once in a while & start using dual iso, the posted photos are simply amazing.

Good job ;)
Title: Re: Thread photos dual iso
Post by: a1ex on February 02, 2014, 05:53:51 PM
Hello... Nikon has this feature built-in, just shoot at ISO 100 ;)

(look in the source; one of the codename for dual ISO was "Nikon mode")
Title: Re: Thread photos dual iso
Post by: 4cc3ss on February 02, 2014, 05:59:56 PM
Shhh... i'm here as a canon user A1ex, i have a Nikon site for Nikon camera. ;)

Btw you still think about my offer :P

Best regards,
4cc3ss
Title: Re: Thread photos dual iso
Post by: Audionut on February 17, 2014, 04:22:07 PM
One from the other day.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A1839.jpg&hash=26e8274b07fd1f6c381f248b016f465f) (https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2Foriginal.jpg&hash=8deeb8b6a0fda29b71892d2b82067dad)
Title: Re: Thread photos dual iso
Post by: chris_overseas on February 17, 2014, 05:49:07 PM
I'm really interested to see your photos but unfortunately your links are broken - DropBox permissions issue maybe? The reason I'm so curious is because I'm going to Son Doong Cave in April and have been wondering what sort of results I'll be able to get with dual ISO. I'll have limited battery capacity, will only have once chance at the trip and I won't be able to do any processing until the trip is over so the more prepared I can be the better.

Went to the Jenolan caves recently, couldn't believe the detail I was able to extract from this one photo!
5D III Test
Title: Re: Thread photos dual iso
Post by: Audionut on February 20, 2014, 09:02:17 AM
Testing the limits.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A1927.jpg&hash=9a8b23a1f657be834d7e68663415eaec)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F_46A1927-1.jpg&hash=e10113e4a3fbe542f682ec30f88978ce)
Title: Re: Thread photos dual iso
Post by: mad.eos on February 25, 2014, 10:24:27 AM
(posted by mistake on another thread about dual_iso)

hi guys,

I would like to share a dual_iso picture just to show one of the big advantages of using the dual_iso module while having some dr with one shot.

Kitty scratching in HDR! May be plain to some, I loved the final result! ;)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fimagizer.imageshack.us%2Fv2%2F800x600q90%2F32%2Fhqp8.jpg&hash=ff507391937f4f778fdc2409f65361cc)
Title: Re: Thread photos dual iso
Post by: Aftab on March 03, 2014, 10:19:32 AM
Folks, I am new to magic lantern. Last couple of weeks I have trying dual iso with 5DII and I am soooooooo impressed. :)
I want to thank the awesome people behind the curtain.
I want to share a picture I have taken using dual iso. This is my first post here. Let me see if I can post the pic.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.flickr.com%2Fphotos%2Faftab%2F12897959993%2Fsizes%2Fl%2F&hash=601f9b0f29691d4482f7c1745b57aec9)

Edit: looks like it didn't work. Another try.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3826%2F12897959993_a654e00dd2_b_d.jpg&hash=5ede3695a5ec0837d2fe47f94a093c24)
Title: Re: Thread photos dual iso
Post by: Danne on March 03, 2014, 01:05:52 PM
Nice examples!
Title: Re: Thread photos dual iso
Post by: sqd on March 03, 2014, 06:19:44 PM
I would like to share a dual_iso picture just to show one of the big advantages of using the dual_iso module while having some dr with one shot.

Indeed, sharing a shot here that was also taken with dual ISO - maybe not the best example for a situation that has a lot of dynamic range, but still, the difference was noticeable that day from dual and non-dual iso shots :) Point is, dual iso takes away nothing from shooting moving objects.

Full size: http://www.flickr.com/photos/squareddesign/12614732584/
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm8.staticflickr.com%2F7296%2F12614732584_5e75987d4e_c.jpg&hash=144f03185a2f55f72cc06a0ffc6510ee)
Title: Re: Thread photos dual iso
Post by: Starclassic on March 08, 2014, 05:41:40 AM
First time with dual_iso 600D.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi623.photobucket.com%2Falbums%2Ftt318%2Flilkunau%2FAntlers_zps9c379f38.jpg&hash=ba0dca268ddbaf5cb8a0362dfd9455f3) (http://s623.photobucket.com/user/lilkunau/media/Antlers_zps9c379f38.jpg.html)
Title: Re: Thread photos dual iso
Post by: Luiz Roberto dos Santos on March 08, 2014, 12:25:38 PM
600D  :-\

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fimageshack.com%2Fa%2Fimg197%2F7812%2Flcss.jpg&hash=b54fe310fdec62152c437b8212b3c245)
Title: Re: Thread photos dual iso
Post by: sqd on March 12, 2014, 11:05:21 PM
Four dual ISO shots stitched together

Full size: http://www.flickr.com/photos/squareddesign/13111118715/lightbox/
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Ffarm8.staticflickr.com%2F7302%2F13111118715_27fc9e66d3_z.jpg&hash=83ba2030f6a6d47424c99b7032c6ecce)
Title: Re: Thread photos dual iso
Post by: dubzeebass on March 16, 2014, 09:31:57 PM
Here's Chicago from yesterday when they dyed the river.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fscontent-a.xx.fbcdn.net%2Fhphotos-frc3%2Ft31.0-8%2F1782538_299500766841465_1665281379_o.jpg&hash=f8e906027a73f40a1497045c96ef3819)
Title: Re: Thread photos dual iso
Post by: Danne on March 16, 2014, 10:27:49 PM
sweet man!
Title: Re: Thread photos dual iso
Post by: riclim on March 17, 2014, 07:16:07 AM
Canon 1100D
f/22, 1/100sec, ISO100/ISO1600 Dual ISO

My first try of Dual ISO function~

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FKoh3eLs.jpg&hash=08e98e38901248bda3b1f245540be0ea)
Before, normal shoot will jpeg

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FqcJn5H9.jpg&hash=05af1d2e6db650a140856ceab2bf5f3b)
After, shoot with Dual ISO


(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FfJDKYDr.jpg&hash=6849a9d04a5029101d2ff9feea18de43)
Compare of the all photo

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2Fz6CFFWh.jpg&hash=a1e8fa666cac173c46d3c456a28b859e)
Zoom in view of the compare photo
Title: Re: Thread photos dual iso
Post by: Marsu42 on March 17, 2014, 07:48:52 AM
My first try of Dual ISO function~

The use of dual_iso is questionable for static scenes, as some shots in this thread are - is this explained in the in-camera help lines(s) clearly enough? For a good example look at the cat shot above.

This method is ok if you just want a quick hdr extension, but otherwise you might want to try dual_iso vs. an actual 2x bracketing enfuse/hdr shot with overlap of ~2ev... and I would suppose for "keepers" with details in the shadows and highlights a >2x multiple bracket will be superior hands down if viewed @100% mag.
Title: Re: Thread photos dual iso
Post by: Audionut on March 17, 2014, 08:26:37 AM
The use of dual_iso is questionable for static scenes,

Negative!

Most all of the original problems with dual_iso are now fixed with the latest cr2hdr.

Bracketing shots will have motion effects on all but the extreme static scenes.  Kill the shutter faster.  Arguably, longer to post process. 

That's 3 issues with bracketing vs dual_iso that I can think of, off the top of my head.  Using ISO to bracket, instead of dual_iso, now that would be silly :P
Title: Re: Thread photos dual iso
Post by: Marsu42 on March 17, 2014, 09:20:37 AM
Using ISO to bracket, instead of dual_iso, now that would be silly :P

Of course your evaluation and choice of words is of course up to you, but from my experience I strongly disagree with your assessment, and afaik alex also wrote that dual_iso is for high dr motion. Btw usually you will do shutter bracketing, not iso.

Even ignoring the acr wb problem the loss of fine detail in shadows and highlights is  noticeable, an inherent problem since the dual_iso shots simply only have half of the data. Also with "real" bracketing you have a wide post-processing choice, often exposure fusion is preferable to blending/hdr... not to speak of real detail work with ps layer. I'd advice every aspiring "dual_iso only" user to really try both options and look for the advantages and disadvantages him/herself.
Title: Re: Thread photos dual iso
Post by: Audionut on March 17, 2014, 09:22:23 AM
You shared your opinion, I shared mine!

and afaik alex also wrote that dual_iso is for high dr motion.

a1ex shared 1 aspect of photography where dual_iso would rain supreme, yes.
As a photographer, you understand the rules of exposure and composition, then you break them.

I use dual_iso, every, single, time, the shadows in my shots are more the -8 EV from saturation.  I don't conform to rules.  I make things work as I need them too  ;)
Title: Re: Thread photos dual iso
Post by: a1ex on March 17, 2014, 09:30:26 AM
My tripod prefers to stay at home usually (so hand-held shooting counts as motion too).

Here's a (hopefully unbiased) test to show how much resolution you are losing: http://www.magiclantern.fm/forum/index.php?topic=7139.msg99437#msg99437
Title: Re: Thread photos dual iso
Post by: Audionut on March 17, 2014, 05:05:50 PM
It became extremely windy, and this was the only place where the sand wasn't going to fly away.

As Captured
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2Fdefault1.jpg&hash=49581a017cf952e3c9b225c21b02b58e)


+4 EV in post - ie:  Exposing for the midtones in camera
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2F%252B4EV1.jpg&hash=f3eb874f653aec234bcace449b2adfcd)


dual_iso
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2Fdual_iso1.jpg&hash=842a7f682539d66981e663688ae653cb)
Title: Re: Thread photos dual iso
Post by: Marsu42 on March 17, 2014, 07:01:26 PM
My tripod prefers to stay at home usually (so hand-held shooting counts as motion too).

Depends on the hdr software you're using, at least Photomatrix is extremely effective in compensating small frame differences - and all my lenses save one have IS anyway.

Here's a (hopefully unbiased) test to show how much resolution you are losing:

I admit I'm often shooting worst-case situations - furry animals with a good lens, so there's a lot of very fine detail esp. in the highlights and this is where I see the resolution loss of dual_iso. Still, better than clipping and no details at all, that's why I'm a big fan of it :-)
Title: Re: Thread photos dual iso
Post by: Audionut on March 17, 2014, 07:56:50 PM
and all my lenses save one have IS anyway.

IS only helps with spacial motion, not temporal motion.
Title: Re: Thread photos dual iso
Post by: Marsu42 on March 17, 2014, 08:05:46 PM
IS only helps with spacial motion, not temporal motion.

Does it indeed - and now here I am, thinking turning on IS freezes the world around me! Really, I was replying to alex when he said he uses dual_iso because he doesn't want to carry a tripod.
Title: Re: Thread photos dual iso
Post by: Audionut on March 17, 2014, 08:09:19 PM
Does it indeed - and now here I am, thinking turning on IS freezes the world around me!

In a single capture, yes.  In a bracketing situation, IS doesn't suddenly develop skills which break the laws of physics  ;)

Which is exactly what I said above!   :P  :D
Title: Re: Thread photos dual iso
Post by: mad.eos on March 17, 2014, 08:45:51 PM
Now, let's cool down at the waterfall with a new dual ISO I took ;-)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fimageshack.com%2Fa%2Fimg32%2F9478%2Faon8.jpg&hash=92a101e7138c7374b2bba5e5d4919b38)
Title: Re: Thread photos dual iso
Post by: creo on March 30, 2014, 10:23:32 PM
Hi all.
I did a little test, showing how much we save the details in the image.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fimages61.fotosik.pl%2F821%2F2d4ab49a73fc2c6d.jpg&hash=fd05209e26d8e18b151f6344f7de8f9c)
Title: Re: Thread photos dual iso
Post by: schedonnardus on March 31, 2014, 07:02:47 PM
This is my first dual-iso image.  Driving home the other day, a really awesome thunderstorm was rolling in. I drove out into the field on the farm to get a wide, clean shot of the impending storm.  I used my 50 f1.8 on my Canon 6D and shot in dual iso 100/800.  It really helped me to get the bright clouds and the dark soil all in one shot.   The final image here is a pano stitched together in CS6.

Thanks for all the amazing work ML!

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7357%2F13487277585_d69c4f74f1.jpg&hash=27eee1932df1ba2faff3848f55344e78) (https://flic.kr/p/mxPPJH)
Title: Re: Thread photos dual iso
Post by: scottiedds on April 01, 2014, 08:04:29 PM
Danne,

The images with and without seem to be the exact same photo as  moving subjects seems to be the same.  With and without dual ISO would have to be two separate shots right ?   Cause you have to turn it on and off to take the two different shots yet moving objects seem to be in the same exact place.  Does this suggest that the differences can be HDR or post processing techniques ?

Thanks,
Scottie :o
Title: Re: Thread photos dual iso
Post by: Danne on April 01, 2014, 08:16:23 PM
Hi! It is the same pictures. The comparison reveals the higher dynamic range between the untouched lowest iso and the processed photo lifting back all those nice noisefree shadows. Of course it would be an even better comparison if I got a normal shot as well to put next to the dualiso-file
Title: Re: Thread photos dual iso
Post by: bkrzic on April 05, 2014, 01:13:28 PM
Without DualISO
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi58.tinypic.com%2Fj0ld28.jpg&hash=8b4fdd6f6d4381623e26e581e49ba9be)

With DualISO
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi58.tinypic.com%2F25upke0.jpg&hash=13013551b4ea9a47c3b15c930c19e85e)

I'm still amazed how good this works. Thank you guys for developing this wonderul tool! :)
Title: Re: Thread photos dual iso
Post by: schedonnardus on April 07, 2014, 04:14:06 PM
WOW!, thanks for sharing bkrzic
Title: Re: Thread photos dual iso
Post by: Danne on April 07, 2014, 05:02:50 PM
Where are those pictures from bkrzic?
Title: Re: Thread photos dual iso
Post by: Audionut on April 07, 2014, 05:07:02 PM
dual_iso panorama of a storm moving through the other day.


(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fs15.postimg.cc%2Ffllymx1l7%2Fthumb.jpg&hash=74f21cdf1ec1197085b750e2d72e6b61) (https://s15.postimg.cc/crit9fhej/fullres.jpg)


Title: Re: Thread photos dual iso
Post by: Stedda on April 07, 2014, 05:13:19 PM
The sheep photo is great! Nice details!
Title: Re: Thread photos dual iso
Post by: Danne on April 07, 2014, 05:18:40 PM
dual_iso panorama of a storm moving through the other day.


(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdl.dropboxusercontent.com%2Fu%2F34113196%2FDual-ISO%2Fforum%2Fthumb.jpg&hash=003dd3e0b8e8d618f112536c89b2f310) (https://dl.dropboxusercontent.com/u/34113196/Dual-ISO/forum/fullres.jpg)

So nice!
Panorama, what lens? Did you stich in ps?
Title: Re: Thread photos dual iso
Post by: Audionut on April 08, 2014, 03:34:11 AM
Thanks.
Sigma 35/1.4 art @ f/8.0, ML ISO 100/800 (http://www.magiclantern.fm/forum/index.php?topic=10111.0).  20 images stitched in PS.  Some light processing with Viveza, to make the clouds a little more menacing.

The hardest part was brightness matching the exposures, due to the current DNG rendering method, that's based on the WL of the images.  There's probably an easier way, but I ended up just matching the exposures based on the histogram.

I've spoken to a1ex about it, fingers crossed it's somewhere near the top of his todo list.

Here is another one, looking opposite to the last, just before it bucketed down with rain.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fs15.postimg.cc%2Fx066uz18b%2Fthumb1.jpg&hash=84f42e65639bdc8b18734510308f8a46) (https://s15.postimg.cc/h1xh4tzaj/fullres1.jpg)

Here is a single image from the above pano, before processing.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fs15.postimg.cc%2Fi47nngi4r%2F46_A0204.jpg&hash=5bd9e54033f7ce73714d10e2643e6d2b)
Title: Re: Thread photos dual iso
Post by: schedonnardus on April 08, 2014, 04:34:32 AM
nice shot!  :D
Title: Re: Thread photos dual iso
Post by: Aftab on April 08, 2014, 01:20:53 PM
More from me

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fg2.img-dpreview.com%2F2E56F4D1B1124ADC948BC876566DCCC8.jpg&hash=78a534bd333be6a211caa4d95d229a1b)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fg1.img-dpreview.com%2FA4646B7F3C154CC9BCD23EC42E93920D.jpg&hash=c3594f3d36c85816b80e41fde153ada5)
Title: Re: Thread photos dual iso
Post by: bkrzic on April 08, 2014, 04:07:20 PM
Where are those pictures from bkrzic?

It's in Croatia, Europe. Place called Mostari near Zagreb. I used 5D mk3 and Canon EF 24mm f1.4. Thank you all for great comments :)
Title: Re: Thread photos dual iso
Post by: vertigopix on April 08, 2014, 04:35:06 PM
Croatia... Most beautiful land on earth ! :-)
Title: Re: Thread photos dual iso
Post by: Luiz Roberto dos Santos on April 08, 2014, 06:02:29 PM
Great photos guys! =D
Title: Re: Thread photos dual iso
Post by: schedonnardus on April 15, 2014, 10:05:16 PM
here are a couple of new Dual-ISO shots from my recent trip to Oregon

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7021%2F13873413213_0de97174dc.jpg&hash=f4a33b5cd52da2a96efdd36a581abe1b) (https://flic.kr/p/n8WSpx)Tree-Sun_Flare (https://flic.kr/p/n8WSpx) by texasaggie_02 (https://www.flickr.com/people/89591872@N03/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2843%2F13873759334_fa37a3e5a6.jpg&hash=450e5f7bdd82382a6368421401258ff9) (https://flic.kr/p/n8YDi9)Tunnel_Falls (https://flic.kr/p/n8YDi9) by texasaggie_02 (https://www.flickr.com/people/89591872@N03/), on Flickr

Title: Re: Thread photos dual iso
Post by: nefarious on April 17, 2014, 10:00:38 AM
Playing around trying to get a feel for the uses of this feature

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3721%2F13793178194_5995425c03.jpg&hash=2e26771244c6c2a87f5762e71600f632) (https://flic.kr/p/n1RDk9)Paper Kite Butterfly /2014 (https://flic.kr/p/n1RDk9) by ups80kft (https://www.flickr.com/people/9846013@N04/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3766%2F13783516223_9324188784.jpg&hash=8140c76fdeb5ac545ee8d4cf03fb4c63) (https://flic.kr/p/n118ar)Butterfly -2/2014 (https://flic.kr/p/n118ar) by ups80kft (https://www.flickr.com/people/9846013@N04/), on Flickr
Title: Re: Thread photos dual iso
Post by: batman on April 19, 2014, 12:30:10 AM
practicing taking skate photos, iso 100/800~ + lightroom post.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3672%2F13905233996_881af25a17.jpg&hash=a6f70abe8683fe49916506efb524d005) (https://flic.kr/p/nbKXBJ)15042014-9991-dualiso (https://flic.kr/p/nbKXBJ) by YeahRaw (https://www.flickr.com/people/101343362@N03/), on Flickr
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5550%2F13905254142_a5590b2574.jpg&hash=551975c2d768ab46d3af8f1a5e69e3dd) (https://flic.kr/p/nbL4B5)15042014-9983-dualiso (https://flic.kr/p/nbL4B5) by YeahRaw (https://www.flickr.com/people/101343362@N03/), on Flickr
Title: Re: Thread photos dual iso
Post by: dsManning on April 26, 2014, 04:58:05 AM
A few from Deer Island, looking back towards Boston. 100/800

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7065%2F14012172985_70c1c5d5c4_s.jpg&hash=01efe096c4bc36a9798780cc64b082e2) (https://flic.kr/p/nmd3Rp)Manning-IMG_5755-140425-dualiso (https://flic.kr/p/nmd3Rp)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5072%2F14032179843_c96bb91b6e_s.jpg&hash=b87b10344c70cf3dd8cf96fdd59f8195) (https://flic.kr/p/nnYAce)Manning-IMG_5740-140425-dualiso (https://flic.kr/p/nnYAce)
Title: Re: Thread photos dual iso
Post by: Anonymouse on April 28, 2014, 03:29:41 PM
A shot from Jenolan Caves, so amazed at the detail I could pull out from the shadows

Before:
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi61.tinypic.com%2Fx0p76b.jpg&hash=cefc246fe2da73be112e915c16cff414)

After:
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi58.tinypic.com%2F2lw5gr6.png&hash=1105729ad94b03252ef33873097934a5)
Title: Re: Thread photos dual iso
Post by: akry on April 29, 2014, 11:08:54 PM
Dual ISO is awesome for street photography!

Canon 6D  ISO 200/3200, 1/500, f/4.0, no tripod, no flash.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2F1xqzSb6.png&hash=4453a424ec5b5155a32f245db7f0c045)
Title: Re: Thread photos dual iso
Post by: RTLdan on May 01, 2014, 11:39:34 AM
After seeing some of the other images in here, I'm a little ashamed to even post this. But here is my rough and dirty first test with dual ISO.
I was on a walk and there wasn't much catching my attention, but there was some wide DR between the setting sky and dark foreground. I took the opportunity to give it a whirl.

The only processing was some of RAW Therapee's auto highlight recovery, etc...

Simultaneously shot JPEG
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi161.photobucket.com%2Falbums%2Ft222%2FRTLdan%2FIMG_4392aa_zps4ae9958d.jpg&hash=595a5fcc3fcc5e58ec9e7bd6d79688d4)

Dual ISO
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi161.photobucket.com%2Falbums%2Ft222%2FRTLdan%2FIMG_4392_zps212902c9.jpg&hash=3b695f1bca04de778e328dd0e6a7401d)

Canon 6D, Vintage Sears 50mm prime, F8, 1/125, ISO 800/3200
Handheld, No tripod.



PS - @Akry, Great work with your 6D!
Title: Re: Thread photos dual iso
Post by: iggy2 on May 09, 2014, 10:57:06 PM
iso 200/800
28mm
5.0
some levels adj.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fimagizer.imageshack.us%2Fv2%2F1280x1024q90%2F841%2F4ppg.jpg&hash=560681664a3c216564cedd90233f1ede)
Title: Re: Thread photos dual iso
Post by: Audionut on May 10, 2014, 04:57:12 AM
iso 200/800
28mm
5.0
some levels adj.

Nice shot.
Title: Re: Thread photos dual iso
Post by: dsManning on May 18, 2014, 01:39:00 AM
Grand Canyon and Sedona visit this past week.  Thank you so much to those who work on this project and to those that keep this community so great.

ISO 100/800
f/8
1/250th
Canon 24-70 @ 24mm
Canon 50D

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-RgVk3GHI9ko%2FU3fyPQ3wUPI%2FAAAAAAAAEek%2FUtIjBqMtwKI%2Fw900-h585-no%2FManning-IMG_7919-140513-dualiso-Edit.jpg&hash=54118595d9ad416c28814676388f0a46)

10 vertical frame panorama stitched in PS CC (full res ended up being 14561x4639)
ISO 100/800
f/9
1/25th
Canon 24-70 @ 24mm
Canon 50D

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-CM3ocmOaJHM%2FU3n0a4gY5FI%2FAAAAAAAAEic%2FD7m2jV5SD5s%2Fw1598-h509-no%2FManning-IMG_7759-140513-dualiso-Edit.jpg&hash=c82d69c5669c59f3836fdd0c4029db20)
Title: Re: Thread photos dual iso
Post by: Zanken on May 20, 2014, 11:57:25 AM
I'm a gig/event photographer experimenting with dual ISO.  It's been great in environments where there is such a strong contrast for things like stage lights and flash work.  A couple of examples.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fo-zan.photography%2Fimagetemp%2FFolkC-010.jpg&hash=4dbe02240a14e1a1e5183c18a52491cf)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fo-zan.photography%2Fimagetemp%2FYMYA2-015.jpg&hash=c6adc88c42e0ae1e8db23003f1e80a6b)

edit: Adjusted picture sizes.
Title: Re: Thread photos dual iso
Post by: brapodam on May 20, 2014, 03:46:31 PM
Not sure if this is a good candidate for Dual ISO, but I went for it anyway

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5512%2F14041177069_3b197fc19c.jpg&hash=2c8072e42f8c7408a49669a6ca825c80) (https://flic.kr/p/noLGKP)
Title: Re: Thread photos dual iso
Post by: Danne on May 20, 2014, 04:12:02 PM
Interesting combining flash with dual iso(second picture). Do you think the result would be different with regular raw in this case?

Third photo looks relly good. I like it a lot
Title: Re: Thread photos dual iso
Post by: puma69 on May 20, 2014, 04:57:22 PM
Work on 5dmk2?
Title: Re: Thread photos dual iso
Post by: Zanken on May 21, 2014, 08:50:26 AM
Interesting combining flash with dual iso(second picture). Do you think the result would be different with regular raw in this case?

Third photo looks relly good. I like it a lot

The big win for event flash photography is getting more DR in the backgrounds.  Especially events like festivals where you notice that background lights colour channels cap out really quickly and everything just looks really smudged.  Dual ISO has helped me immensly shooting manual flash in a pinch in this environment too - my TTL flash was stolen a while back and I haven't been able to afford a replacement.

Most of the examples here seem to be scenes which makes sense.  We've all seen overexposed skies and can appreciate at a glance how big an improvement we are getting with Dual ISO.  I question why most people haven't really discovered it for portrait/event/performance/street style stuff where the loss of detail across the frame matters less and your RAW files has much more flexibility in what you get out of a shot that is just snapped 'in the moment.'

If there is one downside for me though, it's shooting an event (200-400 shots) and leaving them to brew overnight, ultimately costing me 60mb each shot.  Here I was thinking that buying a 6D would be a good move to preserve HDD space - hah!
Title: Re: Thread photos dual iso
Post by: patiferoolz on May 22, 2014, 07:46:35 AM
Hi, can anyone post a sample of a high base iso image using this? High like ISO4000, and then compared to ISO4000/8000 maybe
Title: Re: Thread photos dual iso
Post by: a1ex on May 22, 2014, 07:57:00 AM
ISO 4000 is actually 3200 pushed, and sometimes 1600 pushed (so you lose highlights and you gain nothing in shadows). Between 3200 and 3200/6400, the winner will be 3200.

If your minimum ISO ends up greater than 400, do not use dual ISO. Even if the minimum ISO is 400 (as in 400/1600), think twice before using it. Stick to plain old ETTR instead.

Dual ISO is most effective at 100/800, 100/1600, 100/400 and maybe 200/1600.

(I should probably add this advice in the menu)
Title: Re: Thread photos dual iso
Post by: patiferoolz on May 22, 2014, 09:15:24 AM
thanks a1ex. do you know where i can find a list of native iso's for the 6d ?
Title: Re: Thread photos dual iso
Post by: Doyle4 on May 22, 2014, 10:15:10 AM
@patiferoolz

not sure how accurate this is but its a step to what you are looking for, i use 320,640 or 1600 sometimes 3200, cleanest results iv had using them.

http://www.dpreview.com/forums/post/52070850
Title: Re: Thread photos dual iso
Post by: dmilligan on May 31, 2014, 06:12:58 PM
I don't use dual ISO all that much, but I didn't have a tripod with me for these first three:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2898%2F14304971721_42427b83cd_n.jpg&hash=a45c926a93acbda7df19d07dc66f5084) (https://flic.kr/p/nN5HHt)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5159%2F14306428702_f469cd6a76_n.jpg&hash=0e41b7a59dd9c39b6f893748d7189d99) (https://flic.kr/p/nNdbPQ)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3801%2F14308300065_76c1677240_n.jpg&hash=703f25fb72bc3b6521431519643fc22e) (https://flic.kr/p/nNnM7H)
60D, 8mm fisheye, dual ISO 100/1600


10 stop ND filter + dual ISO makes an 8 sec exposure directly into the sun possible:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2905%2F14285188466_4ed0f2a3ec_n.jpg&hash=8312de7d922f68d3444e4ca7d03296f4) (https://flic.kr/p/nLkjQS)
1100D, Canon 10-22mm @ 10mm, f/14, ISO 100/1600, 8s
(the ND makes some strong color casts that are hard/impossible to rectify, I don't have the $$$ for a really nice one)

add an off camera flash on it's most powerful setting (which still wasn't enough):
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3675%2F14121709150_e3654fb690_n.jpg&hash=36dc72344dd509b41c2bc1d993f1aa76) (https://flic.kr/p/nvTs8Y)
1100D, Canon 10-22mm @ 10mm, f/4.5, ISO 100/1600, 2.5s


Title: Re: Thread photos dual iso
Post by: sajeel on June 01, 2014, 02:28:12 PM
National Museum of Scotland - Dual Iso

https://www.flickr.com/photos/sajeel/14133018058/ (https://www.flickr.com/photos/sajeel/14133018058/)

 ;)
Title: Re: Thread photos dual iso
Post by: Danne on June 02, 2014, 11:23:45 PM
Two pictures exported with kithcehof plugin in lightroom. Dualiso, still amazing :)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs30.postimg.org%2F989adazk1%2FDUAL9271_dualiso_2.jpg&hash=6d7278f4098b40cb1dca8aae96732f11) (http://postimage.org/)



Title: Re: Thread photos dual iso
Post by: Danne on June 02, 2014, 11:26:24 PM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs30.postimg.org%2Fmqg6plbp9%2FDUAL9307_dualiso_4.jpg&hash=19e7a5a7431cc3d50a2dddedd3967c36) (http://postimg.org/image/mqg6plbp9/)
Title: Re: Thread photos dual iso
Post by: HansSurfer on June 05, 2014, 08:09:18 PM
Actionshot in the shadow with a lot of backlight
Camera Model : Canon EOS 5D Mark III
Exposure : 1/1600 seconds
Aperture : f/4
DUAL ISO Speed : 400/1600
Focal Length : 169 mm

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3867%2F14166018120_1a2ff30504_c.jpg&hash=f16bbea10667a092fce4ce86a0a24053) (https://www.flickr.com/photos/hans_surfer/14166018120/)


Title: Re: Thread photos dual iso
Post by: Danne on June 05, 2014, 08:24:50 PM
wonderful colors :)
Title: Re: Thread photos dual iso
Post by: Braga on June 06, 2014, 09:56:33 AM
Actionshot in the shadow with a lot of backlight


Superb!!!
What did you use to process it?
Title: Re: Thread photos dual iso
Post by: ansius on June 06, 2014, 10:07:00 AM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fansius.lv%2Fwp-content%2Fuploads%2F2014%2F05%2FIMG_0199-799x1200.jpg&hash=ce9f65da895d6d91a4c065b155c1dbb1)
Canon EOS 7D, EF 28-300mm IS USM
Title: Re: Thread photos dual iso
Post by: HansSurfer on June 06, 2014, 11:08:07 AM
Superb!!!
What did you use to process it?

I always use Photoshop CC with ACR.
In this picture I blurred the background to give the dog the attention they deserve.
Title: Re: Thread photos dual iso
Post by: rpt on June 08, 2014, 04:41:06 AM
A hawk family lives around my house and he often comes to the trees in and around the garden. Yesterday he was  eating a garden lizard and screaming at the top of his lungs. I guess he thought that it was tasty! Take a look. Personally, I'd pass ;)

Shot with 5D3 firmware 1.2.3

The first one was shot with a 100-200L @200mm, ISO 100/1600, F/8, 1/250
The second one was shot with a 100-400L @400mm with a 1.4x so @560mm, ISO 400/6400, F/8, 1/200
I left the exif on so you can see but imgur.com kills it :(.

I was shooting against the light. The sun is a little to the left of the bird.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FuvXh0nK.jpg&hash=01680350db3c2019f08dcd01f805cb0a)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FduiSKxo.jpg&hash=2a69138e2e7153bf8e425dd319639531)
Title: Re: Thread photos dual iso
Post by: jsoucy on June 13, 2014, 03:58:15 PM
here some shot i did with the dual-iso... seriouly it give a new life to my 7D

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fppcdn.500px.org%2F61976251%2F92f3c0130ce31addb13c434cf482cd647f88e2c8%2F2048.jpg&hash=47106b6b9070b8aa2f7296f19e67fcdf)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fppcdn.500px.org%2F71775819%2F29095cf34b131b3dd9c72d2149c4175efd515be0%2F2048.jpg&hash=c8801b6e960cb233817586be50f8a2fa)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fppcdn.500px.org%2F54595372%2F61ae7701038c139cf0e3d5e37c8388d06409654f%2F2048.jpg&hash=5d806e1d4030d8f852a6b5fc5a531054)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fppcdn.500px.org%2F48574902%2F9a19a4cc1d1844f11de366e6eaf49ff496ebd069%2F2048.jpg&hash=35326a97271f7329fbdf4cce8087c3b2)
Title: Re: Thread photos dual iso
Post by: dualiso on June 14, 2014, 03:15:17 AM
dual iso is way better than bracketing, and it makes photos look better than the usual jpg. but take some time prosessing though. excellent new feature. nice colors. this is how images should come out from canon by default in jpgs.
Title: Re: Thread photos dual iso
Post by: rpt on June 14, 2014, 05:32:55 AM
Lovely images jsoucy!
Title: Re: Thread photos dual iso
Post by: dualiso on June 15, 2014, 12:32:50 AM
had some time to take photos with dual iso today. here is what i think.
this is hdr properly made. there are some quirks to the process though. and to taking photos as well. it feels a little like developing photos. because you do not see on the screen of display the photos. you see some kind of lines there. for a second it shows large resolution with lines then smaller resolution. and you do not know what you took, can’t tell if it properly in focus. and only on computer you develop the raw file you can see what you got. before i did not like raw files. people said that raw is digital negative. well jpg is also digital negative, you can edit it just as raw file. now there is a point of using raw with dual iso. i really like the dinamic range on the photos with dual iso. just take more time developing them. i would avoid taking photos where there is a difference in brightness because i would have to espose either on the bright or dark part. now i can take a photo and get what i can see. and i like that there is only one photo. because with bracketing you take a few photos and people would have moved, or leaves on branches would have moved. and even when you combine them in hdr the photos do not look right. they look like they make you puke, too many colors, hallow where overlap with bright and shadows. dual iso does not have those, single photo, no hallow in overlaping areas of brightness and shadow. thank you a lot. but does need work, like main is to see the photo you took without the lines etc, so that you knew what you took, so that you can tell if it is sharp, or at least not revet to lower resolution in preview in half a second. thanks
Title: Re: Thread photos dual iso
Post by: Danne on June 19, 2014, 11:00:13 AM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs1.postimg.org%2F6gw39sagf%2FO42_A2173_dualiso_2.jpg&hash=9132fc5daa7c7c503b6d854f8903e6f1)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs1.postimg.org%2F66okqfvu7%2FO42_A2207_dualiso_2.jpg&hash=89050d1dc14b3f8d3b87e08ff615af29)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs1.postimg.org%2F7x7lrxddb%2FO42_A2258_dualiso_2.jpg&hash=afb7889bb0d4eaf4d71466afb7074199)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs1.postimg.org%2F4g5joyeb3%2FO42_A2267_dualiso_2.jpg&hash=55f16ea7a984456ad9da228308f3e1cd)
Title: Re: Thread photos dual iso
Post by: dsManning on June 22, 2014, 05:58:23 AM
Danne, like that second one with the centered sun and bird, but the architect in me is freaking out about those slanted buildings.  :P

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fgoo.gl%2F8Hsbtq&hash=63b83bf1c855f156ffaf0cb375993c1e)

Blew out the background highlights for impact on this shot, but I love the contrast I could bring back in the tree to compositionally bring your eyes back to the flower girl.

Rokinon 85mm
Canon 50D
Dual ISO 100/800

Favourite part is it was an unstaged/candid photo.  I was the second shooter and the main photographer had the wedding party posed over to camera left.
Title: Re: Thread photos dual iso
Post by: Frank7D on June 22, 2014, 10:54:21 PM
Blew out the background highlights for impact on this shot, but I love the contrast I could bring back in the tree to compositionally bring your eyes back to the flower girl.

I like this shot a lot, but to me even the girl looks overexposed.
Title: Re: Thread photos dual iso
Post by: Spooke on June 23, 2014, 10:24:32 PM
Canon 650D + Canon EF-S 17-85mm Ultrasonic
Dual ISO 100/800 and 400/1600

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3863%2F14490654402_c426774c49_b.jpg&hash=9b3da9609b74f127c731b6872fcbede5)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3843%2F14490592774_6a8c55c4e2_b.jpg&hash=568a7b1681e9ba781c0cb62222918f78)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2924%2F14511985393_ec7821c8ab_b.jpg&hash=a958936ce14334c65f5832948e3d599a)
This was VERY dark  :)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3880%2F14499433255_30489b8ab0_b.jpg&hash=3c122d1b8cb70e77237e63912aae4ee0)

Edit - Added one more after more testing with Dual ISO, results are much better I think!
Title: Re: Thread photos dual iso
Post by: Anton2707 on June 25, 2014, 05:07:56 PM
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2917%2F14318952439_7cdc440c92_c.jpg&hash=6d6f93e6e35851469a6d42353b088383) (https://flic.kr/p/nPjnGk)
Sunrise (https://flic.kr/p/nPjnGk) by Ant2707 (https://www.flickr.com/people//), on Flickr
Title: Re: Thread photos dual iso
Post by: brapodam on July 04, 2014, 01:11:46 AM
I spent a lot of time removing hot pixels from these...and they were only 10s exposures. I've tried 30s, and there are just tons of hot pixels, but if you have the time to remove them, you can get some great stuff.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5581%2F14562061361_f56c92db6f_z.jpg&hash=43d5cee2b74763f05b2ade7c2084aecb) (https://flic.kr/p/obNnvt)




(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3915%2F14378764360_a9bd05d769_z.jpg&hash=72567b3ee20ac27610df9407d0d5fbaa) (https://flic.kr/p/nUAVGm)
(Yes, that's me, I'm a small guy)
Title: Re: Thread photos dual iso
Post by: frank007 on July 07, 2014, 04:54:10 AM
amazing picture for the poster and the pics from the followers.
Title: Re: Thread photos dual iso
Post by: Alfazzz on July 21, 2014, 08:05:05 PM
Hi,
Here some of my dual iso photos, thank you ML !!!

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5583%2F14695409561_500bfde2a1.jpg&hash=7dcaadd93a402a6a8be340cb85acc063) (https://www.flickr.com/photos/48701592@N03/14695409561/)
IMG_7101-dualiso.jpg (https://www.flickr.com/photos/48701592@N03/14695409561/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3891%2F14698377502_542db62486.jpg&hash=e7546a6653eeb851d2813bc516469616) (https://www.flickr.com/photos/48701592@N03/14698377502/)
IMG_7122-dualiso.jpg (https://www.flickr.com/photos/48701592@N03/14698377502/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2913%2F14698358092_7a2d772774.jpg&hash=9c5a32f6104d1cc0b225e1cbdc6e710e) (https://www.flickr.com/photos/48701592@N03/14698358092/)
IMG_7116-dualiso.jpg (https://www.flickr.com/photos/48701592@N03/14698358092/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2912%2F14511969018_0bd5c1b0b2.jpg&hash=541ce08198ac412fc2c428a29d40c4a6) (https://www.flickr.com/photos/48701592@N03/14511969018/)
IMG_7107-dualiso.jpg (https://www.flickr.com/photos/48701592@N03/14511969018/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3763%2F12938243024_80d5cd251f.jpg&hash=67b02f508594266d9a489fbcb9f1daaf) (https://www.flickr.com/photos/48701592@N03/12938243024/)
Basket battle (https://www.flickr.com/photos/48701592@N03/12938243024/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3726%2F12937814195_f686b5f1d2.jpg&hash=838ed152067273a3be85bc6bdc91283a) (https://www.flickr.com/photos/48701592@N03/12937814195/)
Match (https://www.flickr.com/photos/48701592@N03/12937814195/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2872%2F12938211574_8fe4a9f6b4.jpg&hash=52318df3da3a07b8440ccec9b49e06b6) (https://www.flickr.com/photos/48701592@N03/12938211574/)
Bird (https://www.flickr.com/photos/48701592@N03/12938211574/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3712%2F12936470335_d6e681916c.jpg&hash=a0d68b5e5845ffa6a2c63c51bf2c6ed7) (https://www.flickr.com/photos/48701592@N03/12936470335/)
Ford car (https://www.flickr.com/photos/48701592@N03/12936470335/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3741%2F12936474785_a22cccb89e.jpg&hash=093e0ad938fc7094c03ebdf8e8def3c7) (https://www.flickr.com/photos/48701592@N03/12936474785/)
Melrose sunset (https://www.flickr.com/photos/48701592@N03/12936474785/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2814%2F12892527654_2eb152db02.jpg&hash=a07f175ebf1ceb83b836fe4971e44104) (https://www.flickr.com/photos/48701592@N03/12892527654/)
San Francisco bridge (https://www.flickr.com/photos/48701592@N03/12892527654/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5497%2F9808330363_a8f62ac4e5.jpg&hash=ea98a9861f88887c4a9c9ae0df322f3b) (https://www.flickr.com/photos/48701592@N03/9808330363/)
Zoo des Sables (https://www.flickr.com/photos/48701592@N03/9808330363/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7287%2F9808222913_74686459a6.jpg&hash=6476a942ff3deca4a7497b9a5b2c02e6) (https://www.flickr.com/photos/48701592@N03/9808222913/)
Zoo des Sables (https://www.flickr.com/photos/48701592@N03/9808222913/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr
Title: Re: Thread photos dual iso
Post by: Danne on July 21, 2014, 10:00:11 PM
Incredible pictures. Well done in post production.
Title: Re: Thread photos dual iso
Post by: Alfazzz on July 22, 2014, 09:25:55 AM
Thank you Danne :)
Title: Re: Thread photos dual iso
Post by: rpt on July 29, 2014, 04:29:49 PM
Well, I was is Costa Mesa, California for 4 weeks and discovered in the third week that the Upper Newport Bay Nature Preserve was just 15 minutes walking distance from my hotel. Luckily, I had taken my 5D3 with the kit lens, my 100-400 and the 1.4x. So I went over to the preserve a few times - four or five I think. There is a good amount of wildlife there. These are the ones with DualISO. To see others I have posted, you can visit my post on CanonRumors http://www.canonrumors.com/forum/index.php?topic=22003.0 (http://www.canonrumors.com/forum/index.php?topic=22003.0).

So here goes:

#1.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5574%2F14589749830_6d38245f09_c.jpg&hash=c7f3c08cdb3c495396e59e2becc2b479) (https://flic.kr/p/oefhjS)
RPT_7478-dualiso (https://flic.kr/p/oefhjS) by Rustom (https://www.flickr.com/people//), on Flickr

#2.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3897%2F14774106474_caba3b63db_c.jpg&hash=1a998f0dc247e06f83aba63819c4b8c6) (https://flic.kr/p/ovxa8G)
RPT_7305-dualiso-a (https://flic.kr/p/ovxa8G) by Rustom (https://www.flickr.com/people//), on Flickr


#3.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3920%2F14589809538_47eb824ce6_c.jpg&hash=12f511d66b0af6a7f83da8f330faebc9) (https://flic.kr/p/oefA5j)
RPT_7310-dualiso-a (https://flic.kr/p/oefA5j) by Rustom (https://www.flickr.com/people//), on Flickr


#4.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3875%2F14774102054_12f8af6e85_c.jpg&hash=83ba3e8fb76751732ffc1a4e78a34539) (https://flic.kr/p/ovx8Pu)
RPT_7319-dualiso-a (https://flic.kr/p/ovx8Pu) by Rustom (https://www.flickr.com/people//), on Flickr


#5.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5554%2F14774096564_de47723d10_c.jpg&hash=44aacf147bf4daca807d8cb3bcd0c7b1) (https://flic.kr/p/ovx7bQ)
RPT_7368-dualiso-a (https://flic.kr/p/ovx7bQ) by Rustom (https://www.flickr.com/people//), on Flickr


#6. Yes, it has motion blur and is out of focus but I like it :)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3839%2F14589794358_1d8c9f326f_c.jpg&hash=25a3302914c1406afabc912f20f54159) (https://flic.kr/p/oefvyA)
RPT_7446-dualiso-a (https://flic.kr/p/oefvyA) by Rustom (https://www.flickr.com/people//), on Flickr


#7.
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3921%2F14589948607_f623df7bbe_c.jpg&hash=b6346d7e48adbd5caf2f2a6198f539e7) (https://flic.kr/p/oegiq4)
RPT_7453-dualiso-a (https://flic.kr/p/oegiq4) by Rustom (https://www.flickr.com/people//), on Flickr

Title: Re: Thread photos dual iso
Post by: Virindi on August 11, 2014, 07:14:10 AM
I use dual ISO more and more, I love DR. So much that I'm considering switching to the Nikon D810 if Canon's coming technology still show crappy DR.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3893%2F14853603626_02c1a8b980_b.jpg&hash=2ed0687c562e5c25c91a92128bd997e1) (https://flic.kr/p/oCyASf)Panorama1315-1319 (https://flic.kr/p/oCyASf) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

On this panorama taken at the same time, I forgot to adjust color temperature for each DNG and I thought it looked pretty cool:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3853%2F14689684068_037bc927c0_b.jpg&hash=d5c09d0122942f6f8a09d2bb6fbff105) (https://flic.kr/p/oo5thY)Panorama1328-1338 (https://flic.kr/p/oo5thY) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

My full dual ISO album here: https://www.flickr.com/photos/96833549@N08/sets/72157645918993569/
Title: Re: Thread photos dual iso
Post by: kirkt on August 12, 2014, 10:45:20 PM
Some recent examples, no need to apply any NR in post.  Shot with the 5DIII, build 63b2f145cb3b.  Processed with the cr2hdr executable for Mac embedded in the LR plug-in (command line).  DNGs processed in ACR and PS.

kirk

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-2cnZ3w4%2F0%2FL%2F_MG_0331-L.jpg&hash=f8c34497fd7b5efe4c26277f100e753d)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-gJWMXhb%2F0%2FL%2F_MG_0464-L.jpg&hash=63da935aacf51f44a17c0b01f2b81352)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fkirkt.smugmug.com%2FPhotography%2FLink-Share%2Fi-Jq46gKS%2F0%2FL%2F_MG_0512-L.jpg&hash=39950edc09dbe3c47eac7b97a55d6a55)
Title: Re: Thread photos dual iso
Post by: Virindi on August 24, 2014, 03:16:39 PM
More dual ISO.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5560%2F14987778176_5c1ffe0148_b.jpg&hash=0dce6034f8a9f78cdb638f998cbc5a7e) (https://flic.kr/p/oQqhhy)_MG_1655 (https://flic.kr/p/oQqhhy) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3913%2F15007946481_df424b44aa_b.jpg&hash=dd3a9c5aef941a50fd5f07f672388073) (https://flic.kr/p/oScDBX)_MG_1560-1570 (https://flic.kr/p/oScDBX) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3925%2F15009431735_8dcc35341a_b.jpg&hash=6de987e5cb1a2866ee8b22db5e407e49) (https://flic.kr/p/oSkg8M)_MG_1448-1457 (https://flic.kr/p/oSkg8M) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3891%2F14822781140_bb81e4871c_b.jpg&hash=349d304e4cd3b056a536394e5080828d) (https://flic.kr/p/ozQCq5)_MG_1473 (https://flic.kr/p/ozQCq5) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr
Title: Re: Thread photos dual iso
Post by: sboub on August 24, 2014, 04:55:30 PM
Hi !! had some free time to test dual iso, here are my results; All at 100-1600 converted with the cr2hdr Lightroom plug in


(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5588%2F15019570062_32b0f3b978_z.jpg&hash=4eee4c7d254be3974a40b6fadf834012) (https://flic.kr/p/oTedUw)DUAL ISO-2 (https://flic.kr/p/oTedUw) by Nicolas Delpierre (https://www.flickr.com/people/46050464@N04/), on Flickr


(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5583%2F14833408607_5b9891847f_z.jpg&hash=fd0d738fdefd6bffca23c612c46475ca) (https://flic.kr/p/oAM6Ag)DUAL ISO-1 (https://flic.kr/p/oAM6Ag) by Nicolas Delpierre (https://www.flickr.com/people/46050464@N04/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3917%2F15019698472_1606023c11_z.jpg&hash=2aff1e78ab58402cc00c31be1e3b8a9d) (https://flic.kr/p/oTeT5u)BA (https://flic.kr/p/oTeT5u) by Nicolas Delpierre (https://www.flickr.com/people/46050464@N04/), on Flickr

Title: Re: Thread photos dual iso
Post by: Danne on August 24, 2014, 05:10:52 PM
Really cool pics and places!
Title: Re: Thread photos dual iso
Post by: sboub on August 24, 2014, 05:25:33 PM
Thanks !! I think Virindi is a neighbour... south of France  :)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5563%2F14833880787_68fe7829a3_z.jpg&hash=f957bb7c3db890bd6b7a9b7ed9a651bd) (https://flic.kr/p/oAPvXi)DUAL ISO-3 (https://flic.kr/p/oAPvXi) by Nicolas Delpierre (https://www.flickr.com/people/46050464@N04/), on Flickr
Title: Re: Thread photos dual iso
Post by: Virindi on August 24, 2014, 06:39:08 PM
Really cool pics and places!

That's where you want to go if you ever visit France, Paris is overrated.

Thanks !! I think Virindi is a neighbour... south of France  :)

Région Parisienne, juste de passage dans le 83 en déplacement. :)
Title: Re: Thread photos dual iso
Post by: sboub on August 24, 2014, 07:10:55 PM

Région Parisienne, juste de passage dans le 83 en déplacement. :)

on a été voisin temporairement alors :)
Title: Re: Thread photos dual iso
Post by: Ronnie Chan on August 27, 2014, 05:32:36 AM
I had been using dual ISO for a while with my 5D Mark III and I can say,it does gives an impressive results.Here are some of the image I took and processed
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-o45BWUMK-GE%2FU27oGK7doJI%2FAAAAAAAAZa0%2FSqqBwnbAgXE%2Fs640%2F2M0C2628-dualiso-Edit.jpg&hash=d30f15066cebba1fbd3abfc0a67ad20f)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh3.googleusercontent.com%2F-ADPIKVEbGvk%2FU27oDc73aBI%2FAAAAAAAAZas%2FN9gaku1LPe0%2Fs640%2F2M0C2618-dualiso.jpg&hash=1b56b0bfb3ded21270667a2128cfee17)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-W5RnSBE3EbY%2FU27ptt_gY6I%2FAAAAAAAAZes%2F6GHnsfnHmTw%2Fs640%2F2M0C2704-dualiso.jpg&hash=c6ecfca1cb890ff266b9313467800390)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-1pTPep5Q0eE%2FU27posGLbEI%2FAAAAAAAAZek%2FMQR9_KXGy_8%2Fs640%2F2M0C2702-dualiso.jpg&hash=ac61dd64d9c6632d1b17f8e66e95055a)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-5zhvO_nTArc%2FU27pa426puI%2FAAAAAAAAZeM%2FpRzyjgyMq1g%2Fs640%2F2M0C2699-dualiso.jpg&hash=553ecd2e9d353dc207f72f17cd57db98)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-938CUEHzK-c%2FU27nvGyGv5I%2FAAAAAAAAZZ8%2FTVFANXXACAQ%2Fs800%2F2M0C2596-dualiso-Edit.jpg&hash=5f629096823f03a53a95039976c3d376)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh4.googleusercontent.com%2F-6IK-h0Bxjow%2FU_SPUOcPMVI%2FAAAAAAAAcng%2FpRARBo6sB18%2Fs640%2FNorwegian%25252841%252529.jpg&hash=04405cb1244455fed2cc2fe199359138)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh6.googleusercontent.com%2F-cDuS8uIL5jg%2FU9nAvJKwWBI%2FAAAAAAAAcHI%2FHDIhF8Qz4MI%2Fs640%2F2M0C7693-dualiso-Edit.jpg&hash=07e016078bd687a10466bdedd88de08a)
Title: Re: Thread photos dual iso
Post by: Danne on August 27, 2014, 07:29:51 AM
Very nice. I like the two last  ones really much :)
Title: Re: Thread photos dual iso
Post by: Roman on September 14, 2014, 11:54:51 AM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fiforce.co.nz%2Fi%2Fvic4efuf.3fn.jpg&hash=7786b4dfd2d5cf6a1d667f52b34ab52a) (http://www.iforce.co.nz/View.aspx?i=vic4efuf.3fn.jpg)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fiforce.co.nz%2Fi%2Fkkgqnit4.4lc.jpg&hash=e2ffa342c94317397364df6f63013d12) (http://www.iforce.co.nz/View.aspx?i=kkgqnit4.4lc.jpg)
Title: Re: Thread photos dual iso
Post by: Betelgeuza on September 19, 2014, 09:26:34 PM
with full respect but those examples are possible to shoot with just single iso..

Title: Re: Thread photos dual iso
Post by: Roman on September 21, 2014, 09:42:51 PM
Quote
with full respect but those examples are possible to shoot with just single iso..

And how are you able to judge that? From viewing an edited photo which has the contrast hugely reduced? lol.










Title: Re: Thread photos dual iso
Post by: Virindi on October 04, 2014, 04:08:15 PM
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3935%2F15250456747_9090d03b4b_b.jpg&hash=f023fb2e66a99baf6073b73b6d00c22a) (https://flic.kr/p/peCztr)_MG_2317-2324 (https://flic.kr/p/peCztr) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5598%2F15433771911_8866d57de4_b.jpg&hash=0f1e1f6b9ebe9fc4c5d11fbbfbed3965) (https://flic.kr/p/pvQ7FH)_MG_2381 (https://flic.kr/p/pvQ7FH) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5597%2F15436644392_593b2fa45d_b.jpg&hash=dfbac5a814ad1304e356faa2bae3575d) (https://flic.kr/p/pw5Qzf)_MG_2360-2368 (https://flic.kr/p/pw5Qzf) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2943%2F15436538292_81961e6635_b.jpg&hash=735313804cededf65519ede2c24e8cfb) (https://flic.kr/p/pw5i2W)_MG_2499-2505 (https://flic.kr/p/pw5i2W) by Virindi7751 (https://www.flickr.com/people/96833549@N08/), on Flickr
Title: Re: Thread photos dual iso
Post by: MamXam on October 14, 2014, 09:26:42 PM
Sorry for bad english, I want to say a huge thank you to those who develop ML! Plugin double iso work wonders !! Quality such as removing from the hands could not even get through the HDR. First time trying to plug. All greetings from Russia (Caucasus).

P.S. And the project can not be supported without pay pal?

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3956%2F15350395359_e95617070e_b.jpg&hash=5751524c54bcb7730d84419bb74264de)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3935%2F15534337201_4344b9d251_b.jpg&hash=518a0d657e10a8d66b49f7ca59361f62)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3950%2F15350864978_ac5a6e3350_b.jpg&hash=ca6281841d52e9675f5aff3023568f72)
Title: Re: Thread photos dual iso
Post by: senzazn12 on October 20, 2014, 01:53:55 AM
Loving dual iso as well!

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi60.tinypic.com%2F2f0g03k.jpg&hash=1831e9a2b16c51b19e9d884527ddcbad)
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on October 23, 2014, 05:28:32 PM
Here are two different takes...

5D3 Dual-ISO:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5602%2F15584963406_9d33254593_c.jpg&hash=8a8cc549c8193d17c8818d36f820dcbe) (https://flic.kr/p/pKc1DC)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5600%2F15609475522_f822085017_c.jpg&hash=afe7d89668eebe785d339aa2c967663a) (https://flic.kr/p/pMmDfj)


5D3 (non Dual-ISO w/ same XMP settings) for noise comparison:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3938%2F15422645687_157dc3923d_c.jpg&hash=c6f98516a0f7db2f22bf6cb407337b5c) (https://flic.kr/p/puR6fg)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5600%2F14987900204_2a53a4c884_c.jpg&hash=d8a595c2bca4c31bd1191d2f6b4df3ea) (https://flic.kr/p/oQqUyu)


5D3 Dual-ISO FULL_RES Silent_Pic:  ;)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5605%2F15422537238_d13a9650c0_c.jpg&hash=57563633f5dbc0de2d21518246e03d00) (https://flic.kr/p/puQx1s)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5612%2F15423056500_92f61e8ca9_c.jpg&hash=15bd25e9bd1caa50662538114b922fcc) (https://flic.kr/p/puTcnf)
Title: Re: Thread photos dual iso
Post by: Alfazzz on October 27, 2014, 08:10:11 PM
Hi,
My lastest dual iso pictures
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3893%2F14700103988_5017716971.jpg&hash=5ab6b2bff429a699b455fd5dd5c3e137) (https://www.flickr.com/photos/48701592@N03/14700103988/)
IMG_7179-dualiso.jpg (https://www.flickr.com/photos/48701592@N03/14700103988/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5612%2F15012145344_9797ddbc02.jpg&hash=acb365f5a106e5fd500dc23e2279d986) (https://www.flickr.com/photos/48701592@N03/15012145344/)
_MG_9050 (https://www.flickr.com/photos/48701592@N03/15012145344/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3940%2F15446755508_5863969569.jpg&hash=a6fe2597c66c3bae56ab214501a83a99) (https://www.flickr.com/photos/48701592@N03/15446755508/)
_MG_9052-dualiso (https://www.flickr.com/photos/48701592@N03/15446755508/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5586%2F14863810326_5fdb0ea3c2.jpg&hash=10abcd7ca1337f878bdfe71f16febe1b) (https://www.flickr.com/photos/48701592@N03/14863810326/)
IMG_7180-dualiso.jpg (https://www.flickr.com/photos/48701592@N03/14863810326/) par AlfaiateOlivier (https://www.flickr.com/people/48701592@N03/), sur Flickr
Title: Re: Thread photos dual iso
Post by: Danne on October 27, 2014, 08:50:00 PM
Wonderful places.
Title: Re: Thread photos dual iso
Post by: mrpanic on October 30, 2014, 02:57:23 PM
Been using Dual ISO exclusively on my 5DM3 for nighttime cityscape photography, here are some samples:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7544%2F15630728676_a7dea03d32_t.jpg&hash=ab9c410c7bd1b8a03a62e16970b25b2c) (https://flic.kr/p/pPez51)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5598%2F14994649704_a28e04ee0c_t.jpg&hash=644393406bb50f26fefeb700cbd0de60) (https://flic.kr/p/oR2uXb)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5604%2F15554960471_2c93d07b67_t.jpg&hash=c817e78829097fa3d34f997882b9759d) (https://flic.kr/p/pGxePD)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3932%2F15330876177_b341231fdc_t.jpg&hash=e954cf06acff5b6bcf532027d0309486) (https://flic.kr/p/pmJKnk)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm4.staticflickr.com%2F3927%2F15330810987_9b65205b07_t.jpg&hash=205099a001445f3ffdd6f09fc7bf65f2) (https://flic.kr/p/pmJpZn)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm3.staticflickr.com%2F2950%2F15494211676_cbb78b4671_t.jpg&hash=db3c0928d0428e1397e330bde9d8f515) (https://flic.kr/p/pBaTjC)
Title: Re: Thread photos dual iso
Post by: HondaATC on November 08, 2014, 02:38:32 AM
Some high dynamic range here with a paltry T3i and 50 1.8 using Dual ISO at the brightest most aggressive point of a morning;

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwgolightly.smugmug.com%2FSky-Shots%2Fi-n283Rzk%2F0%2FL%2FIMG_5826_edited-L.jpg&hash=3edff19d91b6ab2d057761166471af42) (http://wgolightly.smugmug.com/Sky-Shots/i-n283Rzk/A)


Very very impressed with some of the photos here. Has me itching for even more dynamic range in another body...
Title: Re: Thread photos dual iso
Post by: senzazn12 on November 08, 2014, 11:42:34 PM
More dual iso shots from a wedding I did last week.


(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi61.tinypic.com%2Fx1gc1v.jpg&hash=23c694ed23b4bb4310a9c5856d1540e5)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi60.tinypic.com%2F16lahs8.jpg&hash=1e45a4125680938248127eb60d750657)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi60.tinypic.com%2F250pnqu.jpg&hash=de8e400aa08e6839924a7d3fb0d9e391)
Title: Re: Thread photos dual iso
Post by: Danne on November 09, 2014, 12:47:18 AM
Good stuff
Title: Re: Thread photos dual iso
Post by: senzazn12 on November 09, 2014, 02:41:00 AM
@Danne Dual Iso is really great! Workflow is a breeze using the LR Dual Iso plugin. You have some great images as well using Dual Iso.
Title: Re: Thread photos dual iso
Post by: limey on November 10, 2014, 02:30:19 AM
I've been shooting dual iso now for thousands of pictures in all kinds of types of shooting, action, still, etc. In still shots I'm not seeing anything, but positives.

I suspect, but don't know for sure, does dual iso cause softer focusing when using higher shutter speeds?

Specifically using AI Servo and highspeed shooting.
Title: Re: Thread photos dual iso
Post by: senzazn12 on November 10, 2014, 05:19:56 AM
@Limey I've been using it with AI servo as well at high shutter speeds and not noticing anything negative. Although I'm not really a pixel peeper.
Title: Re: Thread photos dual iso
Post by: Danne on November 10, 2014, 07:46:10 AM
Sure is amazing. Works just as good filming. In 3x zoom that is. You should try it out :).
www.magiclantern.fm/forum/index.php?topic=12796.msg125268#msg125268
Title: Re: Thread photos dual iso
Post by: senzazn12 on November 10, 2014, 04:23:48 PM
For some reason my Dual Iso 3X crop movie files would have alternating green and magenta tinted frames even when white balance was set the same for both frames. It is wierd. It doesn't happen when I shoot dual iso regular mode but aliasing is pretty bad. Wish there was a software that can get rid of dual iso aliasing. : (
Title: Re: Thread photos dual iso
Post by: Danne on November 10, 2014, 04:51:30 PM
Raw or mlv? What camera are you using? I think if you provide a1ex with a short sample showing iso difference he could have a look.
Title: Re: Thread photos dual iso
Post by: sylvesterdsouza on November 24, 2014, 02:50:33 PM
Took this at sunset yesterday, 600D, ISO100 / +4EV, Manual exposure with ETTR Disabled
Without dual ISO the foreground was just silhouettes

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7466%2F15228845444_72726008aa_m.jpg&hash=7755811f610fb2700b5dbd5e514a09e3) (https://flic.kr/p/pcHPbL)Sinquerim Sunset (https://flic.kr/p/pcHPbL) by sylvesterdsouza (https://www.flickr.com/people/81523028@N00/), on Flickr

Title: Re: Thread photos dual iso
Post by: sinister on December 25, 2014, 12:27:20 PM
Long time reader, first time poster. For the most part I have been using ML for the invalometer and bulb timer and has worked flawlessly and have started to explore the dual ISO feature.

I am interested in how people shoot in the field with dual ISO. I understand you shoot for the base ISO for the highlights and ETTR but how do you come about your 'recovery' ISO? Do you guess the gap? Shoot multiple gaps or liveview the exposure and work from there? Interested to see how people work in the field with this.
Title: Re: Thread photos dual iso
Post by: sinister on December 25, 2014, 12:32:11 PM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.qldstreetscene.com%2Fdi2.jpg&hash=f3abe069263e634d2308e01c878fbc3a)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.qldstreetscene.com%2Fdi1.jpg&hash=ff788aa95132af1d5b763757b19fa1f4)
Title: Re: Thread photos dual iso
Post by: senzazn12 on December 27, 2014, 02:03:44 AM
^^Nice shot!
Title: Re: Thread photos dual iso
Post by: HondaATC on January 04, 2015, 03:34:32 PM
Real-estate photo with High-Dynamic range with my new to me 5D3 from a back porch.
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwgolightly.smugmug.com%2FReal-Estate-portfolio%2Fi-jfssBsx%2F0%2FL%2F_CPB0217-L.jpg&hash=4e4ccd509af70698f5d657497b5c2b49) (http://wgolightly.smugmug.com/Real-Estate-portfolio/i-jfssBsx/A)
Title: Re: Thread photos dual iso
Post by: nikfreak on February 17, 2015, 07:35:17 PM
Nothing really interesting. Just a first dualiso 100/800 quickshot in manual mode on EOS 70D:

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi60.tinypic.com%2F4rc0ia.jpg&hash=d8d88c1a7dc336494ea99d6639ab8c53)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi59.tinypic.com%2Fszvfpl.jpg&hash=9e84d39a20f9b8c2a8a370f6f253ac7d)
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on March 02, 2015, 07:35:24 AM
100/1600:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm9.staticflickr.com%2F8579%2F16690000561_cd1483cc39_n.jpg&hash=2c60ef46cb2fd9c1922390da49d54ee7) (https://flic.kr/p/rqQBGn)
Title: Re: Thread photos dual iso
Post by: UWP on March 04, 2015, 04:54:02 PM
I'm normally not into standard images, I always try to do HDRs between real & comic view. But to show that 70d (YEAH, fresh ML!) is also capable now of ML & dual ISO here's one of my first tries. One is drago (luminance-hdr) developing only, showing a slightly real result, the other one is a mix of several HDR developments of luminance-hdr to have that "comic feeling". For bracketing images, it's mostly a harder effect, in dual ISO I cannot do full comic without having too much noise at the pics.

Those are ISO 100/1600and I found them in result slightly unsharp, I had to resize them to have'em sharp enough. It seems you lose a bit sharpness during the process or the image itself had been unsharp, I really don't know exactly.

Natural (drago):

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.fotothing.com%2Fphotos%2Fde1%2Fde1a8a6d8a63515d25b5151110a3ca94.jpg&hash=0af754e3f99c44ac6ce75fbe0ac0df24) (http://www.fotothing.com/photos/de1/de1a8a6d8a63515d25b5151110a3ca94_019.jpg)

Comic (mix):

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fwww.fotothing.com%2Fphotos%2Faf1%2Faf118c595d1cda8244b8a69dc3404e8c.jpg&hash=9b5675f95f6b066c12dba3a9ac6e95d2) (http://www.fotothing.com/photos/af1/af118c595d1cda8244b8a69dc3404e8c_949.jpg)

UWP
Title: Re: Thread photos dual iso
Post by: chris_1975 on March 10, 2015, 10:56:06 AM
https://www.facebook.com/122338811269922/photos/a.122339334603203.1073741826.122338811269922/281093542061114/?type=1&theater (https://www.facebook.com/122338811269922/photos/a.122339334603203.1073741826.122338811269922/281093542061114/?type=1&theater)

Dual ISO 100-800 50sek ISO100
THX a1ex !!
i love Dual ISO  :D :D


Title: Re: Thread photos dual iso
Post by: berger on March 10, 2015, 04:17:29 PM
Very nice
Title: Thread photos dual iso
Post by: DeafEyeJedi on March 10, 2015, 06:42:06 PM
Indeed.

Kudos to @a1ex for updating the 20-bit cr2hdr & @N/A for making this possible on Mac. [emoji108]

Thanks for sharing @chris_1975 and the hot pixel fix is just marvelous!
Title: Re: Thread photos dual iso
Post by: Mehmet Kozal on March 18, 2015, 04:19:53 AM
I used Dual-Iso to take all of the images in this album. They are not great photographs and I processed them in a very contrasty way though, so it can be hard to tell, but the difference between regular cr2 files and Dual-Iso files are really dramatic.
Any Canon 650D owner probably knows that that the noise levels of this camera is a pain in the ass, especially when you try to pull the shadows even a tiny bit.
Dual - Iso sorted all of these issues for me. So whenever there is no tripod around, Dual-Iso is on.

https://www.facebook.com/media/set/?set=a.10153238914568169.1073741829.658228168&type=1&l=2476dc49cc
Title: Re: Thread photos dual iso
Post by: hayabusabill on March 18, 2015, 08:45:12 PM
can i use dual iso with a 700d
if so what is the easiest way to process the file
can i just open them in PS and touch them up there

                                                                                   thanks
Title: Re: Thread photos dual iso
Post by: Walter Schulz on March 18, 2015, 09:18:51 PM
Wrong forum.
http://www.magiclantern.fm/forum/index.php?board=56.0
Title: Thread photos dual iso
Post by: DeafEyeJedi on March 18, 2015, 09:19:20 PM
Sure, you should be able to.

Please read - Dual-ISO (http://www.magiclantern.fm/forum/index.php?topic=7139.msg59687#msg59687Dual-ISO)
Title: Re: Thread photos dual iso
Post by: Jazzepisode on April 07, 2015, 12:16:47 AM
Latest Dual Iso Picture :)

Zeiss 35mm

100/1600 ISO

Converted with Photoshop. Love the dual iso feature even for black and white images. So much control over the light!

https://www.facebook.com/photo.php?fbid=908718892482053&set=a.908718795815396.1073741830.100000318522557&type=1

And another one :)

https://www.facebook.com/photo.php?fbid=910154069005202&set=a.908718795815396.1073741830.100000318522557&type=1

These two images were shot on a trip to Lisbon, where I was taking all of my images with dual iso feature turned on. At first I was a little afraid, that I would end the trip with about 500 unusable pictures, but they turned out to be far better than I thought they would end up being. I won't do it again though. Using dual iso I realized, that in most cases I won't need it. Mostly it looks unreal and unpleasing to push the dr too much. I'm a total fan of subtle effects in that matter. So most pictures I ended up grading normal in a way I could have done without dual iso. For certain situations though I like it. The best thing about it is, that you can adjust the lighting in post, without having to think too much about it while taking the images. Taking a proper exposure in the first place is of course the far better option, but for spontaneous pictures, where you have to rely on camera metering, it can be a blessing to have it turned on.
Title: Re: Thread photos dual iso
Post by: Danne on April 07, 2015, 10:33:31 PM
I like those bw pictures very much. Well composed.
Title: Re: Thread photos dual iso
Post by: Jazzepisode on April 08, 2015, 12:28:24 PM
Thank you. That means a lot to me :)
Title: Re: Thread photos dual iso
Post by: mato on April 16, 2015, 01:32:57 AM
My first shots with ML, my first dual ISO try

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs27.postimg.org%2Faxf855qsz%2FIMG_4259_s900.jpg&hash=a7235c262baf1d5f5c2aebdfad0047eb)

650D & Canon EF24-105mm f/4 IS USM * f/9 8s @ ISO 800/100
Title: Re: Thread photos dual iso
Post by: Danne on April 16, 2015, 05:10:29 PM
nice picture.
Title: Re: Thread photos dual iso
Post by: tombu on April 17, 2015, 09:08:19 PM
One virtual copy created from the original dual iso -file and then blended together in PS with luminosity masks :)
I really need to get back to taking pictures this summer, haven't had inspiration in a long time unfortunately!
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm9.staticflickr.com%2F8715%2F16560072113_3e538317e1_c.jpg&hash=2ed5fe85fd894f200ebd3c56de14d7ab)
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on April 18, 2015, 12:23:43 AM
 -Deleted-
Title: Re: Thread photos dual iso
Post by: Jazzepisode on April 19, 2015, 11:14:47 PM
https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xpa1/t31.0-8/885780_928148947205714_5500661431917804938_o.jpg
Title: Re: Thread photos dual iso
Post by: Danne on April 20, 2015, 07:04:30 AM
Where is that picture from? Surreal architecture.
Title: Re: Thread photos dual iso
Post by: Jazzepisode on April 20, 2015, 09:16:14 AM
That picture of mine? From that same trip to Lisbon. It is a part of the train station Lisbon oriente built by Santiago Calatrava. It is part of the architecture exposition from 1998.
Title: Re: Thread photos dual iso
Post by: seejey on April 27, 2015, 10:58:55 PM
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Flh5.googleusercontent.com%2F-1IrJg2b_PLg%2FVT6ZMY0onuI%2FAAAAAAAABbQ%2FDUO87l9nTo8%2Fw599-h899-no%2FIMG_2016-dualiso.jpg&hash=423eb4a25217b4e73eb4e9600f16e4c6)

Canon 60D, Magic Lantern Dual ISO. Processing was done in Lightroom CC 2015
Title: Re: Thread photos dual iso
Post by: Danne on April 27, 2015, 11:03:01 PM
Beautiful place.
Title: Re: Thread photos dual iso
Post by: mtsandersen on May 06, 2015, 06:54:05 PM
I've experimented a bit with Dual ISO on my Canon 60D, not with any great success. I am primarily looking to reduce noise in shadows. First time I tried it with a high-contrast area, it had bad sawtooth artefacts in the transition, which I think A1ex subsequently fixed according to a post. I just did a quick test today when out, a shot from within the car on a sunny day. All I see is the reduced resolution, no gain in quality. I would still like to experiment with the method using 2 brackets on a tripod, but I have to change ISO without bumping the camera.
Here's a crop (http://users.tpg.com.au/staer/DualISO/DualISO-cr2hdr-Beta2.0.jpg) from my experiment using a Canon 60D with Magic Lantern Nightly.2015Jan24.60D111 and Dual ISO set to 100/1600 and decoded using the Mac version of cr2hdr 2.0 Beta

Preview below. Click through to full size in a new tab.
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fusers.tpg.com.au%2Fstaer%2FDualISO%2FDualISO-cr2hdr-Beta2.0-900px.jpg&hash=44b0a800036948ebe2550994600ce158) (http://users.tpg.com.au/staer/DualISO/DualISO-cr2hdr-Beta2.0.jpg)
Title: Re: Thread photos dual iso
Post by: Danne on May 06, 2015, 08:52:14 PM
Could you make the picture smaller? I think 900 pixels is maximum allowed.
Title: Re: Thread photos dual iso
Post by: mtsandersen on May 07, 2015, 08:46:20 AM
Could you make the picture smaller? I think 900 pixels is maximum allowed.
Done. Added link to full-size image, as the detail and noise levels are rather the point.
Title: Re: Thread photos dual iso
Post by: tombu on May 24, 2015, 08:23:06 PM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FC3tckc5.jpg&hash=ee16efc4602ae86abf9872cb7d376b7f)
Title: Re: Thread photos dual iso
Post by: micbil on June 29, 2015, 07:00:56 AM
Hi guys!

I have done a small trip in Asia and since every picture in this flickr is Dual ISO even the small time lapse It's a pleasure to share with you.

https://www.flickr.com/photos/mindthatpicture (https://www.flickr.com/photos/mindthatpicture)

Hope you like it  :)

Thank you ML
Title: Re: Thread photos dual iso
Post by: Danne on June 29, 2015, 08:38:59 AM
Very nice pictures micbil. What settings and what converter did you use to trasncode them? Thanks for sharing
Title: Re: Thread photos dual iso
Post by: mothaibaphoto on June 29, 2015, 11:04:47 AM
@micbil: You call it "small trip"? :) Among other locations you crossed Vietnam on motorbike, just like   Top Gear  (https://en.wikipedia.org/wiki/Top_Gear:_Vietnam_Special) , right? I'm glad to see that fishermen from Quang Tri still use their   basket boats.  (https://www.flickr.com/photos/mindthatpicture/15274115519/in/dateposted/)  :) And, please, tag   this image  (https://www.flickr.com/photos/mindthatpicture/15535267122/in/dateposted/) (and two next)   Hải Vân Pass.  (https://en.wikipedia.org/wiki/H%E1%BA%A3i_V%C3%A2n_Pass)
Title: Re: Thread photos dual iso
Post by: micbil on June 29, 2015, 11:44:34 PM
Very nice pictures micbil. What settings and what converter did you use to trasncode them? Thanks for sharing
Thank you :)
I was using a Canon 6D with 100 iso and 1600 or 3200 combo (6d is really good with high iso). I was underexposing about 1 stop or more to keep lot of highlight.
All the photos are process with lightroom and the cr2hdr plugins.

@micbil: You call it "small trip"? :) Among other locations you crossed Vietnam on motorbike, just like   Top Gear  (https://en.wikipedia.org/wiki/Top_Gear:_Vietnam_Special) , right? I'm glad to see that fishermen from Quang Tri still use their   basket boats.  (https://www.flickr.com/photos/mindthatpicture/15274115519/in/dateposted/)  :) And, please, tag   this image  (https://www.flickr.com/photos/mindthatpicture/15535267122/in/dateposted/) (and two next)   Hải Vân Pass.  (https://en.wikipedia.org/wiki/H%E1%BA%A3i_V%C3%A2n_Pass)
Yeah small trip close to 4 months :) Yes i did a bit like Top Gear but in reverse (i think).
I will tag these pictures asap!

Have a good day
Title: Re: Thread photos dual iso
Post by: JonahJames on June 30, 2015, 02:13:15 PM
The formerlyfffffffffffffffffffffyj
Title: Re: Thread photos dual iso
Post by: senzazn12 on July 01, 2015, 03:31:47 AM
A dual iso shot from a hiking trip this past Sunday.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi59.tinypic.com%2F55sb6g.jpg&hash=cc30cfd35d288e498542f08f853993b7)
Title: Re: Thread photos dual iso
Post by: chris_1975 on July 01, 2015, 05:17:08 PM
5DIII dual Iso 100/800
150sek f8 ISO100 + Darkframe

https://www.facebook.com/122338811269922/photos/a.122339334603203.1073741826.122338811269922/338622416308226/?type=1&theater

Title: Re: Thread photos dual iso
Post by: piisami on July 02, 2015, 11:11:30 AM
I tried dual ISO very first time and it's amazing! :)

Edited Dual ISO 100/1600
https://500px.com/photo/113785225/dual-iso-by-sami-heikkinen (https://500px.com/photo/113785225/dual-iso-by-sami-heikkinen)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdrscdn.500px.org%2Fphoto%2F113785225%2Fm%253D900%2Ff1b6aa9af9c63605c02696bca7ccd1d4&hash=96e8e5b91eb2d849b0c2775c749a1247)

Unedited
https://500px.com/photo/113785223/dual-iso-by-sami-heikkinen (https://500px.com/photo/113785223/dual-iso-by-sami-heikkinen)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdrscdn.500px.org%2Fphoto%2F113785223%2Fm%253D900%2F6c3a93928727982621a361f92143e32f&hash=fb4cd84af70d0c8b8a0a26fbceeb72d9)
Title: Re: Thread photos dual iso
Post by: rpt on July 02, 2015, 01:02:52 PM
Impressive the amount of detail recovered. However I think you need to fix white balance and/or tint. I say this as the rocks look bluish as do some of the leaves in the middle.
Title: Re: Thread photos dual iso
Post by: david az on July 03, 2015, 09:21:37 PM
canon 5d mk2
canon ef 50mm 1.4 usm
dual iso raw
iso 100/400


(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F1%2F507%2F19391236221_4942328128_z.jpg&hash=088e206ef94d7ea0bd73d4b29b1d28d3) (https://flic.kr/p/vxx9WZ)© Photographer : david az (https://flic.kr/p/vxx9WZ) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc4.staticflickr.com%2F4%2F3892%2F19201192199_f5ca422cf7_z.jpg&hash=9ca2963309e32f9bd3096ba75c820964) (https://flic.kr/p/vfK8tV)© Photographer : david az (https://flic.kr/p/vfK8tV) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F1%2F384%2F19199537468_73b9299b31_z.jpg&hash=13b57dd59021052053647c0f3409cfbe) (https://flic.kr/p/vfADA5)© Photographer : david az (https://flic.kr/p/vfADA5) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F1%2F283%2F19199540708_e6710eb339_z.jpg&hash=27a2be2b00a76cf90ad9b8257d65cc37) (https://flic.kr/p/vfAExW)© Photographer : david az (https://flic.kr/p/vfAExW) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr
Title: Re: Thread photos dual iso
Post by: Danne on July 03, 2015, 10:06:41 PM
What a lovely cat :)
Title: Re: Thread photos dual iso
Post by: david az on July 03, 2015, 10:21:16 PM
thanks danne
Title: Thread photos dual iso
Post by: DeafEyeJedi on July 04, 2015, 12:07:52 AM
Likewise, that's definitely one of a kind looking Cat!

Did you use ETTR or by the eye?

Thanks for sharing @david az!
Title: Re: Thread photos dual iso
Post by: david az on July 04, 2015, 01:26:15 AM
thanks bro my cat churchill is Definitely
a Handsome cat
And my second cat is not lacking Lucille
In the beauty department
I always practice them on photographic techniques and then passes it on filming girls
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F9%2F8049%2F8145233870_7faaabe86e_z.jpg&hash=4b10ada5e358ff5b5fcda0e4560a2dba) (https://flic.kr/p/dpLsfJ)_MG_1650 1 (https://flic.kr/p/dpLsfJ) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr
Not a valid vimeo URL [/vimeo]

Not a valid vimeo URL [/vimeo]
Title: Re: Thread photos dual iso
Post by: rpt on July 04, 2015, 05:48:40 AM
Seriously good looking cat! I have never seen a cat with blue eyes!
Title: Re: Thread photos dual iso
Post by: david az on July 05, 2015, 01:28:34 AM
canon 5d mk2
lens canon ef 50mm 1.4
dual iso
setting iso 100/400
f 1.4
exposure time 1/50
flash canon rt 600

flash setting
manual
zoom 28mm
Flash intensity 1/16
Gary Fong diffuser
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F1%2F536%2F19232102088_257a1c5284_z.jpg&hash=dacc68824d0c32b78f4339dbd65aff89) (https://flic.kr/p/vitxV3)_MG_0102 (https://flic.kr/p/vitxV3) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc4.staticflickr.com%2F4%2F3926%2F19396649606_b57520efa6_z.jpg&hash=9faeea736831a094fead95d6fd0eda80) (https://flic.kr/p/vy1Uad)© Photographer : david az (https://flic.kr/p/vy1Uad) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr
Title: Re: Thread photos dual iso
Post by: clipse94 on July 08, 2015, 04:49:45 PM
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F312%2F19338599079_1b63bf0695_z.jpg&hash=8dfb6459728443871033bc2fa2dcf334) (https://flic.kr/p/vsTnL4)FB_IMG_1436321296968 (https://flic.kr/p/vsTnL4) by clipse_94 (https://www.flickr.com/photos/53667426@N00/), on Flickr

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F529%2F19518427322_d0c4a8edb5_z.jpg&hash=a5a5936a6b61d5eea8382817d1453b2a) (https://flic.kr/p/vJM3r1)FB_IMG_1436321173222 (https://flic.kr/p/vJM3r1) by clipse_94 (https://www.flickr.com/photos/53667426@N00/), on Flickr

I'm loving the dynamic range on dual_iso. The first picture was just an experiment to see how far I could go. Both are 100/800.
Title: Re: Thread photos dual iso
Post by: valery.v.petrov on July 17, 2015, 07:24:20 PM
Test-1. It works.

Original JPG

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fr5ga.com%2Fml%2Forig.jpg&hash=16111d9ef60569099c794b23827750c5)


Dual ISO 100/1600

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fr5ga.com%2Fml%2Fdualiso.jpg&hash=fa4dee85634daeb17a464a9c7974bc1f)

Dual ISO Zoom 100%

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fr5ga.com%2Fml%2Fcapture_from_dual_iso.jpg&hash=aee7c7cd8adc42042d3829e4fad69b1c)

CR2

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fr5ga.com%2Fml%2Fcr2.jpg&hash=57449ab74007225354d3e168185c1655)

CR2 Zoom 100%

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fr5ga.com%2Fml%2Fcapture_from_cr2.jpg&hash=07dcf457fc70befc2a5d5cf29f3ef61f)

Title: Re: Thread photos dual iso
Post by: Jon OapostropheBrien on July 31, 2015, 12:14:54 AM
I've been using dual iso for a while now, with varied success. Having the function fail on a frequent basis doesn't help but when it works I've been pleased with the result on the vast majority of occasions. Every now and then, though, one really gives me what I wanted and this is one of them:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fdrscdn.500px.org%2Fphoto%2F116642477%2Fm%253D900%2Fb25ac6e78d4ca0b45b33ea64aa2dcf3b&hash=d1f5af77a5ee53640ca4931fe0066f1b)

Camera: 650D
Lens: Sigma 8-16mm f/4.5-5.6 DC HSM @ 12mm
Exp: 1/125' @ f11
ISO: 100/1600

Many thanks for a great feature.
Title: Re: Thread photos dual iso
Post by: david az on August 02, 2015, 10:46:40 AM
my new lynx cat steve vai jr
© Photographer : david az

Not a valid vimeo URL
Not a valid vimeo URL
Not a valid vimeo URL
Not a valid vimeo URL
Not a valid vimeo URL
Not a valid vimeo URL
Not a valid vimeo URL
Not a valid vimeo URL
Title: indoor Dual-ISO examples
Post by: garry23 on August 02, 2015, 01:56:52 PM
I thought some may be interested in my latest Dual experiments, inside an NT property: http://photography.grayheron.net/2015/07/the-national-trust-now-photographers.html
Title: Re: Thread photos dual iso
Post by: kbeecher on August 12, 2015, 04:15:25 PM
Just started messing around with Dual Iso. and geesh! Breaths LIFE into the shadows, giving you lots more room to push them in post. Big ups for creating this!!!

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F347%2F19785812226_88a8a47ca1_h.jpg&hash=926f7a17ae32d75b7b8c7e0bc59a0fe1) (https://flic.kr/p/w9psDy)The Maiden Voyage // Delaware State Park, Ohio (https://flic.kr/p/w9psDy) by Kyle Beecher (https://www.flickr.com/photos/kylebeecher/), on Flickr
Title: Thread photos dual iso
Post by: DeafEyeJedi on August 12, 2015, 06:40:05 PM
Nice shot @kbeecher and did you use this in 100/1600?
Title: Re: Thread photos dual iso
Post by: kbeecher on September 17, 2015, 07:33:06 PM
Nice shot @kbeecher and did you use this in 100/1600?
99% sure i used ISO 1000 (not 100)/3200

guilty i did use a ever so slight bit of noise reduction on the sky and trees
Title: Re: Thread photos dual iso
Post by: Magiclanterner on September 26, 2015, 12:23:41 PM
Dual ISO is amazing on my Canon EOS M
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5713%2F21102619384_628b726d63_h.jpg&hash=cddfddd8494fa83fff3bd4c8e727a208) (https://flic.kr/p/y9Lrxf)The Sun Goes Down - ML Dual ISO (https://flic.kr/p/y9Lrxf) by jojobernard523 (https://www.flickr.com/photos/jojobernard523/), sur Flickr
Title: Re: Thread photos dual iso
Post by: Scipione205 on October 05, 2015, 07:35:16 PM
Canon EOS 600D - Yashica 50mm f/2

Dual ISO 100/3200 - EI 3200*

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2Fi2Aj7TE.jpg&hash=769db82678532b3dcbca6675b8083e6d) (http://i.imgur.com/i2Aj7TE.jpg)

I don't do the "ettr" because: for the exposure I don't use preview, histograms, zebras, etc. but only my exposure meter ( a Sekonik L-398A ) because I'm learning cinematography and I also shoot 16mm color and bw negative. The exposure index is the film/sensor sensitivity or speed.
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on October 28, 2015, 10:00:42 PM
My first Dual-ISO Photos from SL1/100D ...

•Shot w 16-35L II @ ISO 100/1600

•Converted w latest cr2hdr.3.0BETA3.3 plugin from @kichetof in LR6

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5642%2F22290943418_946dbdbc88_n.jpg&hash=7cdb9eaf390d9de1f96c80a333994c2f) (https://flic.kr/p/zXLUSE) (https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5767%2F22478664975_f8f108fa3e_n.jpg&hash=b0ab7525506f9675a70c8a8a26045c7a) (https://flic.kr/p/Afn2Xe) (https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F620%2F22465288162_c1592d3d6f_n.jpg&hash=31bf505931e564c872c67c21ac8f5326) (https://flic.kr/p/Aebtuw)

•Dual-ISO helped pushed this up to 13.25 stops of DR -- not bad for a $275 Body!  8)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F685%2F21856167174_5613976c29_n.jpg&hash=9fedffe9fa84926550ce1ce5450d74d6) (https://flic.kr/p/zimz3w)

•Here are a few more (100/1600) from the same body but this time with an old Nikon 135 2.8 glass...

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5686%2F21884470293_903d972dcd_n.jpg&hash=a29421bed02efdd6c998ff3c05fb2712) (https://flic.kr/p/zkRCzk) (https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F630%2F22318822679_ba3475a89a_n.jpg&hash=6c092e62c572bf732bbf8d5915a69ae2) (https://flic.kr/p/A1eNpz)

Look at the lady's eye lashes and the kitten's frisks. Not bad for a $40 lens I scooped up from a garage sale. Manually spot on!
Title: Re: Thread photos dual iso
Post by: axelcine on October 29, 2015, 08:24:00 PM
@dfort and @DeafEyeJedi - I am afraid I'm getting ahead of the topic of this particular thread, so I started a new thread under General Chat, http://www.magiclantern.fm/forum/index.php?topic=16082.new#new
Title: Re: Thread photos dual iso
Post by: dynalmadman on October 30, 2015, 04:14:40 PM
From a total noob. Intrigued by the concept of Dual ISO. Understand the concept. Installed the LR Plugin. Set my 70d to 100/1600 and took a completely nondescript photo.

Imported the cr2 into LR and with no adjustments, exported using the cr2HDR plugin.

Then exported the DNG to a 90% jpg, and again, no adjustments, here are the results:

Camera JPG:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5694%2F22593450242_58f658f16c_b.jpg&hash=f1150812f10e1099cfec5a2fdde2b21b) (https://flic.kr/p/AqvkBy)IMG_5847 (https://flic.kr/p/AqvkBy) by Michael (https://www.flickr.com/photos/101292417@N03/), on Flickr

Dual ISO JPG:
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm1.staticflickr.com%2F646%2F22606960295_e123b61937_b.jpg&hash=31e7c5da464a1884b8d04a4c671ef4b4) (https://flic.kr/p/ArGzFv)IMG_5847-dualiso (https://flic.kr/p/ArGzFv) by Michael (https://www.flickr.com/photos/101292417@N03/), on Flickr


The text file:

Active options:
--amaze-edge    : use a temporary demosaic step (AMaZE) followed by edge-directed interpolation (default)
--cs2x2         : apply 2x2 chroma smoothing in noisy and aliased areas (default)
--no-bad-pix    : disable bad pixel fixing (try it if you shoot stars)
--wb=graymax    : set AsShotNeutral by maximizing the number of gray pixels (default)

Camera          : Canon EOS 70D
Full size       : 5568 x 3708
Active area     : 5496 x 3670
Black borders   : 72 left, 38 top
Black level     : 2048
ISO pattern     : BddB RGGB
White levels    : 10000 12196
Noise levels    : 19.76 6.36 6.42 18.88 (14-bit)
ISO difference  : 4.05 EV (1654)
Black delta     : 3.92
Black adjust    : -7
Dynamic range   : 10.29 (+) 9.00 => 13.05 EV (in theory)
AMaZE interpolation ...
Amaze took 1.67 s
Edge-directed interpolation...
Semi-overexposed: 0.05%
Deep shadows    : 93.52%
Horizontal stripe fix...
Full-res reconstruction...
ISO overlap     : 3.2 EV (approx)
Half-res blending...
Chroma smoothing...
Building alias map...
Filtering alias map...
Smoothing alias map...
Final blending...
Noise level     : 60.68 (20-bit), ideally 60.56
Dynamic range   : 13.03 EV (cooked)
Black adjust    : -11
AsShotNeutral   : 0.42 1 0.52, 5414K/g=0.67 (gray max)

I don't even know what I am doing, and this is incredible!

Now, why do I want to pair this with ETTR?

Thanks,
Michael
Title: Re: Thread photos dual iso
Post by: david az on November 03, 2015, 05:26:00 PM
RockCat Steve Vai

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5830%2F22724712646_fd11702cb7_c.jpg&hash=ff8644741a1afdb9f7f326888d87b40f) (https://flic.kr/p/AC76ms)MLV_A001_031600_C00011.000122 (https://flic.kr/p/AC76ms) by david az (https://www.flickr.com/photos/89573225@N08/), on Flickr
Title: Re: Thread photos dual iso
Post by: imagineD on February 13, 2016, 12:50:30 AM
My first DualIso experiment with Canon 650D
I am really amazed from this function.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fphoto-viewbug.s3.amazonaws.com%2Fmedia%2Fmediafiles%2F2016%2F02%2F07%2F63273729_large1300.jpg&hash=ee90bc119aa839be4ab446bf967d970b)
Title: Re: Thread photos dual iso
Post by: kidfob on February 16, 2016, 10:00:09 PM
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1576%2F25072906105_8cb91d2cf9_b.jpg&hash=982d77608ea4659122f7dcd4a0bafbdc) (https://flic.kr/p/EcBcsz) (https://flic.kr/p/EcBcsz)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1681%2F24705266399_2a619c7368_b.jpg&hash=776c412f6b2d0fb905a3cd7f71475e83) (https://flic.kr/p/DD7WYX) (https://flic.kr/p/DD7WYX)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1462%2F25046570126_8d41e6c797_b.jpg&hash=97047bb9e4afdca47df18220a991c34a) (https://flic.kr/p/EahdFY) (https://flic.kr/p/EahdFY)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1650%2F25072911645_d32a509e15_b.jpg&hash=e8bedd87547167ec7c254de7dd50fd18) (https://flic.kr/p/EcBe76) (https://flic.kr/p/EcBe76)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1635%2F25046567676_89f8d68c9a_b.jpg&hash=1517bc3a7142d75bd8ab8ae9c5531e79) (https://flic.kr/p/EahcXJ) (https://flic.kr/p/EahcXJ)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1545%2F25072909145_b4d3cfe9e8_b.jpg&hash=07a566ffd56f1b19c000cff79101c5ec) (https://flic.kr/p/EcBdmZ) (https://flic.kr/p/EcBdmZ)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1642%2F25072907955_d88f3cf049_b.jpg&hash=c7de8d734c0dcf7a1fb1370b2a408535) (https://flic.kr/p/EcBd1t) (https://flic.kr/p/EcBd1t)

Title: Re: Thread photos dual iso
Post by: HappyBlack on February 16, 2016, 11:51:21 PM
Love the non-HDR, natural look and your coloring taste, Kidfob.
Great use of the dual iso.

Mind sharing camera specs?
Title: Re: Thread photos dual iso
Post by: kidfob on February 17, 2016, 02:44:23 AM
Thanks HappyBlack.

5D Mark 3. Canon L glass.

Detailed camera fstop and shutter specs are on the flickr info if you click the image and go to the picture page.
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on February 17, 2016, 03:51:38 AM
Nice work, @kidfob and which converter did you use to spit out the DNG's?
Title: Re: Thread photos dual iso
Post by: kidfob on February 17, 2016, 12:50:46 PM
Appreciate it DeafEye. I got tired of the Lightroom plugin, so I use cr2hdr and an application I created myself to batch process folders of CR2s and DNGs (I've called it Dual ISO Processor). I will create a new thread and release the app to the community as open source by the end of this week.

 What made you ask? Did something seem unconventional about what I was doing? :)
Title: Re: Thread photos dual iso
Post by: Levas on February 17, 2016, 04:45:00 PM
Does the app also use the 20bit cr2hdr and is it made for mac or windows ?
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on February 17, 2016, 05:38:25 PM
Just curious if you had used the recent updated 20-bit cr2hdr version that's all. Looking forward to your application.

If you are on Mac ... Check out MLVFS or MLP which both are incredible apps.
Title: Re: Thread photos dual iso
Post by: kidfob on February 17, 2016, 07:41:26 PM
Levas & DeafEye, I believe the latest version of cr2hdr (Nov 24, 2015) is automatically 20-bit:
https://builds.magiclantern.fm/jenkins/view/Other%20tasks/job/cr2hdr-20bit/

Anyhow, the app allows the user to point to the folder where cr2hdr is located so any version will work. The above is the version I tested with though.

It's a Windows Application. Perhaps someone can do a Mac Port if they feel its useful. Not sure what other folks are using to batch process Dual ISO images. I used to use the VB Script that was posted here a while back, but I wanted something powerful enough to process an entire directory structure and give diagnostic info and such.

MLVFS didnt work for me too well when I tried it. Im stil lan MLVRawViewer (and MLVMystic if any files give me trouble) guy.

MLProducer didnt play nice with me. I wanted to go from MLV to DNG. It seemed to want to convert to intermediary video formats. Maybe it was user error on my part....



Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on February 18, 2016, 12:33:11 AM
Gotcha ... Sounds good and also with some of your shots it seems you were exposing for the highlights ... Try to use a little more of ETTR and then pull down in post. That way you will get less noise in the shadows and the highlights should still be there hence the full purpose of Dual-ISO.
Title: Re: Thread photos dual iso
Post by: Levas on February 18, 2016, 09:35:51 AM
Ah windows application, no problem I'll keep on using the lightroom plugin.

Title: Re: Thread photos dual iso
Post by: Danne on February 18, 2016, 10:42:28 AM
I made MLP for mac work multithreaded and made dcraw snatch the correct white balance multipliers added to the created DNG files so using that is an alternative if you work with bigger batches of CR2 dual iso files.

MLP
http://www.magiclantern.fm/forum/index.php?topic=13512.msg130562#msg130562
Title: Re: Thread photos dual iso
Post by: kidfob on February 19, 2016, 05:41:48 AM
Deafeye can you elaborate  on that? How can you tell I'm exposing for highlights? I actually thought I was exposing to the right. Shall I post the original DNGs so we can take a look at the histogram?

Can you post an image that looks like it used ETTR and dual iso?

Thanks
Title: Re: Thread photos dual iso
Post by: tonij on March 24, 2016, 02:52:26 PM
Hello,
Playing around with ML for the first time and the Dual ISO feature is amazing!
This is my first pic and I already see the potential!
7D + Sigma 18-35 lens + ISO 100/1600
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs5.postimg.org%2F4xigeouqf%2Fbefore.jpg&hash=d534a47f7152adb9d9840c2ed00bdd4e)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs5.postimg.org%2F73hcmxnkn%2Fafter.jpg&hash=ae95f181022363b41a56f335a1d826e9)

And how it would have looked at just ISO 100 (TERRIBLE!)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fs5.postimg.org%2Frc4q8nmvr%2Fno_dual_iso.jpg&hash=2bf715187361fae10ac900f96fd6681c)
Title: Re: Thread photos dual iso
Post by: mfturner on April 11, 2016, 07:41:13 PM
I have seen at lot of landscape and indoor examples for dual_iso, but not many wildlife or bird photos.  Birds in flight are almost always backlit, either bright sun or overcast clouds creating a silhouette.  Anything around water has specular highlights.  So dual_iso sounded like it was worth trying and I was not disappointed.  Everything below is 100/800 ISO on a 60D camera with a 300F4L lens, exposed using auto_expo with a few changes, -0.5 EV to protect hightlights exposed at ISO 100, and keep the shutter fast enough for active critters.

First attempt is my dynamic range winner at 13.08 EV on a 60D camera, too bad it isn't in great focus LOL.  I'll have to go back and see if that bird hangs around that pond.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1681%2F26346588266_a77e733354_b.jpg&hash=2b4237e9c47406a5f359ff1330a8af74) (https://flic.kr/p/G9a9MQ)IMG_6724pxs (https://flic.kr/p/G9a9MQ) by Mark Turner (https://www.flickr.com/photos/141770216@N03/), on Flickr

Another on the pond, with 12.78 EV if I recall correctly:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1622%2F26306302091_be15895579_b.jpg&hash=9fc0cd9bf13b4df3120b7f349d256628) (https://flic.kr/p/G5AF7B)IMG_6613xs (https://flic.kr/p/G5AF7B) by Mark Turner (https://www.flickr.com/photos/141770216@N03/), on Flickr

Even small birds in trees with black feathering benefit in the feather detail, this one is a fairly heavy crop:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1522%2F26099678460_b5796223e5_b.jpg&hash=b96bfec6cbef5df7011a91cc84f486d1) (https://flic.kr/p/FLkF7d)IMG_6656xs (https://flic.kr/p/FLkF7d) by Mark Turner (https://www.flickr.com/photos/141770216@N03/), on Flickr

Now something interesting I found was that particularly in photos of this osprey flying, with large blue sky surrounding the bird, the shadows of the bird took on a heavy horizontal banding artifact in a lot of the photos.  Not in all, but in maybe 60%.  With birds and wildlife in general you cannot always get as close to the subject as you might like, so heavy cropping is sometimes the only option, and this is when artifacts such as this banding become an issue.  It is always accompanied with the cr2hdr complaint "Horizontal Stripe Fix...Offset too large", but I think this is just a symptom, I think the fullres algorithm is related to the problem because I can eliminate it entirely with --no-fullres option, at the expense of resolution of course.  Here is an example, first the full frame image where you won't see any real problems, for reference:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1654%2F25767699784_e400a8eda2_b.jpg&hash=62e9fa19dc189da3b32bc5ee65998c15) (https://flic.kr/p/Fg1cpW)IMG_6589xs (https://flic.kr/p/Fg1cpW) by Mark Turner (https://www.flickr.com/photos/141770216@N03/), on Flickr

Next a 900x900 pixel crop at 100%, with default cr2hdr settings, to show the banding, It shows in the preview of this post anyway:

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1581%2F25769801983_38e14ae2fa_b.jpg&hash=7b6721f7fdf1d580ffd9c773ceadb837) (https://flic.kr/p/FgbYjK)IMG_6589full1x (https://flic.kr/p/FgbYjK) by Mark Turner (https://www.flickr.com/photos/141770216@N03/), on Flickr

And finally a halfres version using the --no-fullres option in cr2hdr.exe.  You can see the resolution loss particularly around the beak, but there's no banding, it's super-smooth...

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm2.staticflickr.com%2F1514%2F26280177142_e9da1ab1ab_z.jpg&hash=f1a49d79d175ec4130f1a6183e3cb7a6) (https://flic.kr/p/G3hM5s)IMG_6589half1x (https://flic.kr/p/G3hM5s) by Mark Turner (https://www.flickr.com/photos/141770216@N03/), on Flickr

But this is great stuff, I may use dual_iso in alternating mode for a while until I understand the banding a bit more, but some of those shots simply aren't possible with this camera without dual_iso.


Title: Re: Thread photos dual iso
Post by: a1ex on April 11, 2016, 11:55:23 PM
That banding looks like a bug, can you upload the CR2?
Title: Re: Thread photos dual iso
Post by: mfturner on April 12, 2016, 05:02:51 AM
Hi A1ex, try this:
https://www.dropbox.com/s/urk9rrpczgnjdbz/IMG_6589.CR2?dl=0
Let me know if you can't get to it.  I have other images that do this if you want more examples, most have this feature of an object surrounded by blue sky, but not all.  I tried a couple of versions of cr2hdr, and debugged it this far searching the forum then using --debug-blend to see where it is introduced.  I can manually blend them in gimp (using a layer mask generated from a greyscale copy of the fullres image, then monkeying with the levels a bit to get more details). 
Title: Re: Thread photos dual iso
Post by: barnabe on May 07, 2016, 11:53:09 AM
One of my really first one. I'm quite happy with the result.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fs32.postimg.org%2F6ua2ajit1%2Ffr1_2000.jpg&hash=3cf0bf099ba9b0c6238912e1e0060a03)
Title: Re: Thread photos dual iso
Post by: tecgen on May 11, 2016, 03:58:41 PM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fc3.staticflickr.com%2F2%2F1546%2F25943829770_610c552b62_k.jpg&hash=1320f900ed0588522f1da7e61cc02851)
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on May 19, 2016, 09:05:55 AM
5D3 + 8-15L 1/15th @ f4 ISO 100/1600

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7561%2F27012418702_35b7b92032_c.jpg&hash=0bed468cd2db482984c7197227009daa) (https://flic.kr/p/H9ZGYW)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7143%2F27038246611_efcec70952_c.jpg&hash=a02150e1ab5906a3c5dc11e188b03056) (https://flic.kr/p/Hch5HH)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7126%2F27012418332_ca514f7117_c.jpg&hash=dc1d8f0390dba21a869563e704acbd34) (https://flic.kr/p/H9ZGSy)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7465%2F27038229831_5eee588672_c.jpg&hash=5c629eecbc45deee1cc25587831c725e) (https://flic.kr/p/HcgZJp)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7383%2F27012417842_5480f98f73_c.jpg&hash=8b6745a11dfe0ec9fa9ba5dbc4732af3) (https://flic.kr/p/H9ZGJ7)
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm8.staticflickr.com%2F7671%2F26832482070_e933575ccd_c.jpg&hash=d9d5db2e97c01179c8ce423fa798e3ce) (https://flic.kr/p/GT6u6d)
Title: Re: Thread photos dual iso
Post by: Audionut on May 19, 2016, 10:34:21 AM
I think you've protected to many highlights there.  Remember that ISO doesn't fix shot noise, only exposure, and at a rough guess I would say you're probably around a half stop under exposed.  Probably splitting hairs, but in scenes like this with constant scene luminance where you have the time to nail exposure............

Also, personally, I think you've gone a touch heavy with the shadow adjustment.  The first two shots especially look like you've gone more towards the "hey I've got lots of dynamic range" rather then using the contrast to your advantage.  I wasn't there so I don't know how bright things were, but I think I would keep some of those heavy noise areas in the blacks, as blacks.

But I like them, and you know what they say about opinions, everyone has one just like an asshole.
Title: Thread photos dual iso
Post by: DeafEyeJedi on May 19, 2016, 10:49:20 AM
Actually I totally agree with you @Audionut as you can see I shot those three with each shutter getting longer from 1/20th to 1/13th handheld wide open @ f4 with the maximum acceptable ISO 100/1600 combo and tried my best to have it metered into the middle of the viewfinder but it was about over a half stop under exposed so guess I should have slowed the shutter down even more (or a faster fisheye lens) otherwise then I would need a tripod because apparently I'm not a professional photographer. If you want, I'll post up the DNG's to play with and Thanks for your kind comments & criticism! [emoji3]
Title: Re: Thread photos dual iso
Post by: shaulbarlev1 on June 05, 2016, 02:31:27 PM
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FAvCvP3F.jpg&hash=d05ccc241fc5291433061c81c9b6f8dc)
(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FakeUnKU.jpg&hash=8cac33241de5d82cd61f2210cd9ebc8f)
Title: Re: Thread photos dual iso
Post by: Excaliburst on January 14, 2017, 09:18:42 PM
I have just found the Dual ISO setting in ML and am stunned and exhilerated to try and get the best out of my photos with this. Hence I just went down the harbour to shoot some pictures.

However they are way over-exposed coming from LightRoom 5.3 in the Dual-ISO Magic Lantern conversion plugin out to DNG photos. What might be wrong with them. Why is the exposure that I have dialled in in LR disregarded in the conversion proces?   :o
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F1%2F611%2F31497600233_d585ec4db8_c.jpg&hash=fdd9336ea99c739099fdbc7e76658036) (https://flic.kr/p/PZkrbZ)IMG_3041-dualiso (https://flic.kr/p/PZkrbZ) by Morten Enevoldsen (https://www.flickr.com/photos/146844259@N04/), on Flickr


If I choose one of my normal export presets, it gets correctly exposed, but with the interlacing horisontal lines...
(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Fc1.staticflickr.com%2F1%2F512%2F31482563404_d4686d1ea1_h.jpg&hash=7d59ff0a5a000bfb78620624b4f99b4e) (https://flic.kr/p/PY1ngj)IMG_3041 (https://flic.kr/p/PY1ngj) by Morten Enevoldsen (https://www.flickr.com/photos/146844259@N04/), on Flickr

I would love to hear any constructive thoughts on this issue.. Thanks

Morten
Title: Re: Thread photos dual iso
Post by: Walter Schulz on January 15, 2017, 03:32:21 PM
I suggest to move your issue to the Dual-ISO thread.
Share an unprocessed Dual-ISO file somewhere downloadable without registration needed.
Title: Re: Thread photos dual iso
Post by: ibrahim on February 05, 2017, 12:57:37 AM
Very nice dynamic range and almost no shadows. Which lens did you use on your 5d3 in your first post Danne?
Title: Re: Thread photos dual iso
Post by: guru_rb on July 17, 2017, 05:14:13 PM
How to insert full sized images? I am only getting thumbnails :-(


(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fthumb.ibb.co%2FkfQH4a%2FH0bw6_Bu_Hopg_ZD9_Ke_Xoqxdf_Xyb_AMy0_Rv_Mn9_Bp_S2p_D9tau_So5_D2d_C5k_A_w1200_h630_p.jpg&hash=91c0689f6a6048850a28ac0596464e12) (http://ibb.co/kfQH4a)

bb code image (http://imgbb.com/)

Title: Re: Thread photos dual iso
Post by: kiron123 on August 10, 2017, 05:43:18 AM
Hi! How can I attach my pictures from my computer? I cannot see an attachment button here.
Title: Re: Thread photos dual iso
Post by: R on August 13, 2017, 06:13:58 PM
When trying to compensate interior with exterior exposure I mostly use flash + Dual ISO. You can check the results here http://www.ramonclemente.com/portfolio/ (http://www.ramonclemente.com/portfolio/)

I usually try to bounce flashes on walls, ceilings or any other neutral surface I can find in the room. This particular room had two walls of red bricks, red bricks also in the ceiling, light brown tiles on the floor and very dark mahogany furniture (behind me) so bouncing the flashes would have cast red tints to the scene. The room had three 20W incandescent light bulbs.

This time I had no umbrellas or diffusers with me and the only way of getting a kind of natural look was using the few light coming from a dimly lit courtyard so I took a couple of Dual ISO long exposures. I also did bracketing as a back-up because I have to admit that I had not done long exposure using Dual ISO before. When photographing interiors my shutter times are usually from 1/4 to 1/160, this time I took one at 4" and another at 8".

I like the result. The only issue I find is that dead, hot and stuck pixels are more noticeable; they even seem bigger.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fpreview.ibb.co%2FktNkma%2FMG_5424_dualiso.jpg&hash=a40404e9380587d1c6f28f63cb12006c) (http://ibb.co/d4QhXF)

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fpreview.ibb.co%2FdfLGsF%2FMG_5426_dualiso.jpg&hash=da4a547226f7c350b5bfda17c26ed8bd) (http://ibb.co/e5DrRa)
Title: Re: Thread photos dual iso
Post by: russellsnr on August 16, 2017, 09:53:41 AM
Hi! How can I attach my pictures from my computer? I cannot see an attachment button here.

(https://www.magiclantern.fm/forum/proxy.php?request=http%3A%2F%2Fthumb.ibb.co%2FieG8sF%2Fadd_image_button.jpg&hash=5c7f6461cf2d2611a597d1e5f4df80ad) (http://ibb.co/ieG8sF)
Title: Re: Thread photos dual iso
Post by: bpv5P on August 16, 2017, 03:07:02 PM
Awesome.

The only issue I find is that dead, hot and stuck pixels are more noticeable; they even seem bigger.

That's probably because of interpolation, but dual-iso conversors already have a algorithm for dead pixel removal...

In your user case, wouldn't be better to work with HDR, instead of dual iso?
I've already tried both (using HDRMerge (https://jcelaya.github.io/hdrmerge/) for processing) and HDR gives me better results (of course).
Dual Iso is very useful for high speed photography and MLV video, but if you have a tripod and time, HDR gives much better results.
Title: Re: Thread photos dual iso
Post by: R on August 17, 2017, 07:34:32 PM
Awesome.

In your user case, wouldn't be better to work with HDR, instead of dual iso?
I've already tried both (using HDRMerge (https://jcelaya.github.io/hdrmerge/) for processing) and HDR gives me better results (of course).
Dual Iso is very useful for high speed photography and MLV video, but if you have a tripod and time, HDR gives much better results.

I do not only use Dual ISO because of its DR expansion but also because it helps me optimizing my workflow in most of my sessions. HDR means usually 3 bracketed shots + exporting those images to an HDR software + importing the tone mapped image to LR again... and that means extra time added to the session and therefore high prices for my clients. Of course that in high level shootings I bracket the scene and work with layers in PS but for mid-level ones DISO is the best option in my opinion to 1) get good results, 2) good prices and 3) be able to shoot many properties during high season. Anyway, as I wrote, I also took some bracketed shots just in case and these photos were a kind of experiment to see what the results would be using DISO in a very dark bedroom.
Title: Re: Thread photos dual iso
Post by: dfort on August 24, 2017, 02:31:03 AM
I didn't make any plans to shoot the solar eclipse on Monday and the morning started out with heavy overcast skies in Los Angeles. When it started happening I grabbed the 700D, put on a 135mm Rokinon with a Nikon 2x teleconverter and added a 2.1 ND filter. Just for fun I shot some dual iso and was able to pull some details in the the thin cloud layer covering the sun.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4379%2F36596529782_809b0c2063_z.jpg&hash=076443831a39a5dba8ff71eb3fd19778) (https://flic.kr/p/XKUMiq) (https://flic.kr/p/XKUMiq)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4339%2F36627172041_487e7831c4.jpg&hash=e5ef4c8c11d6d4016d6ce5ea2abc36a5) (https://flic.kr/p/XNBQbe)
Title: Re: Thread photos dual iso
Post by: kyrobb on August 24, 2017, 03:05:12 AM
I'm glad you also got photo evidence that it was a real photo because that is just unreal. Incredible shot man!
Title: Re: Thread photos dual iso
Post by: bpv5P on August 24, 2017, 04:18:38 AM
Very cool @dfort !
Title: Re: Thread photos dual iso
Post by: rpt on August 24, 2017, 04:37:57 AM
Wow! What were your settings? I am hoping to go shoot the annular eclipse in south India in 2019 so beginning my study now :)
Title: Re: Thread photos dual iso
Post by: dfort on August 24, 2017, 06:29:00 AM
The settings I used were to set the shutter speed to 1/4000 sec. -- as fast as possible. I also had all of my ND filters ready and went from stacking a 1.2 and 0.9 (7-stops) to no filter, depending on the the cloud cover. The dual iso setting was 100/1600. I also had the intervalometer running so it was taking a shot every 10 seconds. I kept my hand on the F-stop ring and adjusted so that I could see something in the LiveView display. Not very scientific or well thought out but something I learned when I was making a living in photography is that the only thing that matters is getting the shot so bracket the hell out of it!

This is a shot without dual iso. The sun is pretty much burned out and this is as far as I could stretch the image.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4366%2F36596529892_5f08b272f2_z.jpg&hash=6a83a66a9d7c49e352f31bddc12f0caf) (https://flic.kr/p/XKUMkj)

If I were to do this again I'd seriously consider getting a 3.0 (10 stopper) ND filter or maybe even a 5.0 Solar Eclipse (16.5 stop) filter. Stacking filters and shooting straight into the sun is an invitation for some weird flare patterns.

This is what that dual iso shot on post 1761 (http://www.magiclantern.fm/forum/index.php?topic=7402.msg189014#msg189014) looks like before processing.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4418%2F36722394296_e480a238a1_n.jpg&hash=68f8e376919ab269d3dd768435c84da1)

Not very impressive, is it? That dreaded costal marine layer really helped the shot and so did dual iso!
Title: Re: Thread photos dual iso
Post by: rpt on August 24, 2017, 06:04:08 PM
Cool! Thanks. So I will start scouting for ND filters now.

Yes, that marine layer of clouds in LA is something!
Title: Re: Thread photos dual iso
Post by: Danne on August 24, 2017, 07:23:27 PM
Beautiful images dfort and others.
Title: Re: Thread photos dual iso
Post by: DeafEyeJedi on August 24, 2017, 08:50:20 PM
Insanely amazing work by @dfort and if you don't mind me asking what was the actual ISO for the non Dual ISO shot -- was it 100 or 1600?
Title: Re: Thread photos dual iso
Post by: dfort on August 24, 2017, 09:32:38 PM
what was the actual ISO for the non Dual ISO shot -- was it 100 or 1600?

100 -- You wouldn't use a fast ISO then add ND filters to counteract it would you? With dual iso I was able to knock it down enough so the sun was just clipping at iso 100 then dig out some details in the clouds with the 1600 iso. Without dual iso it was either severely clipped sun with clouds or detail in the sun with a black sky. I suppose shooting separate exposures would have worked but the clouds would probably move between exposures. I was right next to the ocean and these clouds were flying by low and fast.
Title: Thread photos dual iso
Post by: DeafEyeJedi on January 23, 2018, 12:24:56 AM
Some Dual-ISO fun stuff coming from a SL1/100D shot in 100/1600 during the Women's March out in downtown Los Angeles over the weekend.

Operated entirely in AV mode (set it to +3/4 of a stop OE which is approximately 3 clicks to the right) since this seems to have served me well when it comes to shooting in Dual-ISO while there are constant changes in exposures and whatnot while marching along on the streets.

No time to hesitate. Just frame your shot accordingly and the rest is history!

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4666%2F39775842602_08b549a33f.jpg&hash=d764f1b0a7803b798c9a098a7d4e5c3a) (https://flic.kr/p/23ARAeG)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4625%2F39775841932_fcd6afe935.jpg&hash=26cb979fa06e605ceb556c481af4c962) (https://flic.kr/p/23ARA39)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4618%2F39775834352_24f0ef02e5.jpg&hash=58ab61c7ba7944bfef356f66a5c57314) (https://flic.kr/p/23ARxMs) <-- Can't believe this was shot in F1.4 and @Danne was right all along in regards to Sigma's Art series.
Should have listened sooner. [emoji14]

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4672%2F39097785654_f8a6f9d96a.jpg&hash=749bbd0c6c93fa796eb213a1a2fa38ad) (https://flic.kr/p/22yWnwE)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4746%2F39097786114_941cfbe24a.jpg&hash=7e6ccf19279c01551a134d2dd213d6ad) (https://flic.kr/p/22yWnEA)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4603%2F24937233047_91cc1914c4.jpg&hash=0629a60a067a96a2a749e452c5dca69b) (https://flic.kr/p/DZBQzV)

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4765%2F39775842402_4ff4b920b2.jpg&hash=e8f083f551c4beb8d077bb4e3555f7a8) (https://flic.kr/p/23ARAbf)

Here's a 5-shot Pano handheld @ F8 all across...

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm5.staticflickr.com%2F4698%2F39097787434_da604783a1.jpg&hash=1cde6e39a77a7895f7de76e299eff9dd) (https://flic.kr/p/22yWo4m)
Title: Re: Thread photos dual iso
Post by: mothaibaphoto on January 28, 2018, 03:31:54 PM
Wow, you are so good at reportage, DeafEyeJedi :)
It's so funny and naive for the rest of the world... "Who runs the world girls" - Phhhh.... :)
Thank you, I'd like to be there :)