Author Topic: Magic Lantern for 7D alpha 2  (Read 1088178 times)

jphansen

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Re: Magic Lantern for 7D alpha 2
« Reply #875 on: August 02, 2013, 12:29:19 AM »
NOW I fucked up.. EOScard crash on my.. I was not able to select the 203 alpha and it crashed.. Here is the error log...

Code: [Select]
AppName: eoscard.exe AppVer: 0.0.0.0 ModName: kernel32.dll
ModVer: 5.1.2600.5508 Offset: 00012aeb

When hitting Ports in progress I get: Invalid argument to date encode??

I've refreshed the files in the zip here so EOScard can download this version from now.
Also updated EOScard itself (bugfix).
The file_man.mo is  the newest with the date info.

arrinkiiii

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Re: Magic Lantern for 7D alpha 2
« Reply #876 on: August 02, 2013, 02:15:31 AM »
1) What a1ex was trying to say is that after picture nr 9999 Canon automatically creates new folder, because it would overwrite existing pictures (It's starts all over with nr 0001).

@arrinkiiii

I think that your example is misleading. Isn't it the same picture with different settings in cameraRAW? For appropriate test you should take two photos: one with dual iso off and another with dual iso ON. And expose for gray card.

Hi pit3k,

1- Thank you for the explanation, know i know why  :D

2- OK, i will do that. Is just open the DNG in photshop (raw) and then  cameraraw give me a picture with 0 settings (normal picture). Then i adjust the exposure, highlights, shadows, etc and is what gives me the (dual iso) picture. I think this method is how you can see the dynamic range that the dual iso gives you. So... im wrong  :-\  ...damn!

Anyone knows why wend i see the picture in camera preview is different wend i open the dng? (light, exposure...)

Audionut

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Re: Magic Lantern for 7D alpha 2
« Reply #877 on: August 02, 2013, 03:18:30 AM »
Can someone upload a regular CR2 and a dual-ISO CR2 please and I'll have a look at getting alex's code fully functional.

feureau

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Re: Magic Lantern for 7D alpha 2
« Reply #878 on: August 02, 2013, 08:05:23 AM »
Regular CR2 http://www.mediafire.com/?9hhpudxhxdn69ee

Dual ISO CR2 http://www.mediafire.com/?67v18257b4tjob2

Interestingly, this was shot at 100/12800 which is about 7eV, but the cr2hdr said it's only about 5eV. The resulting DNG looks a lot like regular CR2 but with less noise in the shadow.

a1ex

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Re: Magic Lantern for 7D alpha 2
« Reply #879 on: August 02, 2013, 08:39:19 AM »
If you look at DxO dynamic range numbers, you will notice there's no point in going above ISO 1600 on 7D. I've left the higher ISOs so you can experiment, but that doesn't mean you should use the extreme settings.

The 5 EV difference means the highest analog ISO is 3200, which confirms this: http://www.guillermoluijk.com/article/isos5dmkii/index.htm

BTW, got something cool for you: https://bitbucket.org/hudson/magic-lantern/commits/c2a01891156e

From now on, it's your job to get it fully working.

tonybeccar

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Re: Magic Lantern for 7D alpha 2
« Reply #880 on: August 02, 2013, 08:50:15 AM »
If you look at DxO dynamic range numbers, you will notice there's no point in going above ISO 1600 on 7D. I've left the higher ISOs so you can experiment, but that doesn't mean you should use the extreme settings.

The 5 EV difference means the highest analog ISO is 3200, which confirms this: http://www.guillermoluijk.com/article/isos5dmkii/index.htm

BTW, got something cool for you: https://bitbucket.org/hudson/magic-lantern/commits/c2a01891156e

From now on, it's your job to get it fully working.

WHHAAAT WHAT WHAT WHAAATTTT!!!!!!!!!!!!!!!!

OMG I'm about to literally cry!!!!! The gods must have listened cause I was browsing for used 5D's.... and of course the gods have the names of ALL the ML Dev team!!!!

Alex, does this actually means that it's *very* possible for this to happen?? :)

a1ex

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Re: Magic Lantern for 7D alpha 2
« Reply #881 on: August 02, 2013, 08:51:30 AM »
Quote
From now on, it's your job to get it fully working.

This means I'm confident you can do it ;)

Updated this chart with theoretical values.

tonybeccar

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Re: Magic Lantern for 7D alpha 2
« Reply #882 on: August 02, 2013, 08:56:47 AM »
Haha yes! I read that after I replied.. me as a user would love to contribute by testing of course..

What I meant to say is at which stage is this AWESOME breakthrough? Is it at the same level of other cameras or is it just bursting silent pics? I'm asking 'cause I don't know how to compile it myself! (though it may be easy if I put my mind to it! ;) )

Thanksssss!!!!! If you're confident, then I'm confident! :)

a1ex

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Re: Magic Lantern for 7D alpha 2
« Reply #883 on: August 02, 2013, 09:16:43 AM »
For now it's just bursting silent pics without proper sync. Most of them are good.

britom

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Re: Magic Lantern for 7D alpha 2
« Reply #884 on: August 02, 2013, 09:17:57 AM »
7D Builds with RAW support: http://bit.ly/14Llzda

hjulenissen

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Re: Magic Lantern for 7D alpha 2
« Reply #885 on: August 02, 2013, 09:19:13 AM »
Canon DSLRs are getting a beating because the DR as a function of ISO measured at DxOMark starts to flatten asymptotically towards 11-12Ev at ISO1600 and below, while recent Nikon DSLRs (and everything based on Sony sensors) appears to improve their DR all the way to ISO 100 (14+ Ev):
http://www.dxomark.com/index.php/Cameras/Compare-Camera-Sensors/Compare-cameras-side-by-side/(appareil1)/795|0/(brand)/Canon/(appareil2)/792|0/(brand2)/Nikon

The difference appears to be Canon using off-sensor ADC (but perhaps on-sensor analog gain). Therefore, a significant amount of noise is added to the signal subsequent to analog amplification and prior to ADC. By raising the amplifier gain "just enough", the signal will be hot enough to travel this path without being affected that much by noise. DSLRs based on Sonys on-sensor ADC are not affected in the same way, and many are described as "ISO-less", i.e. raw shooters might just as well shoot in ISO 100 all the time, under-exposing when necessary and raising the brightness in their raw developer instead of worrying about ISO in camera.

The potential of using "dual ISO" ought to be to have the highlight capability of ISO100, but improving the shadow noise by increasing the gain.

The downside is that ISO cannot be applied as a function of regional signal level: having alternate line(pairs) having different ISO is a kind of "interlacing" that will amplify some sensels that should have been amplified, and not amplify some sensels that should have been.

I think that the image examples shown in this thread have been somewhat misleading in that they appear to compare a regular "flat" image with a tone-mapped dual ISO image. Just like when comparing HDR photography to LDR photography, I think that that is only 50% of the story. In order to really visualize the differences, we might want 4 images:
1. Regular captured, Regular processed image
2. Regular captured, Tonemapped image
3. DualISO captured, Regular processed image
4. DualISO captured, Tonemapped image

For most, the difference between image 2 and image 4 might be most telling, as the tonal range should be similar, but DualISO ought to have less visible shadow noise and some artifacting/loss of resolution.

Is it possible/feasible to pre-process dualISO images into something that appears like regular 7D images (only with less shadow noise) suitable for any raw converter?

-h

Audionut

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Re: Magic Lantern for 7D alpha 2
« Reply #886 on: August 02, 2013, 09:29:55 AM »
Cheers feureau.

I'm busy busy busy this weekend, but I'll try and spend some time on it tonight.

a1ex

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Re: Magic Lantern for 7D alpha 2
« Reply #887 on: August 02, 2013, 09:30:19 AM »
hjulenissen: you seem to know your stuff, but from your question, I bet you did not read my paper and you did not download any DNG samples.

arrinkiiii

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Re: Magic Lantern for 7D alpha 2
« Reply #888 on: August 02, 2013, 09:45:58 AM »
For now it's just bursting silent pics without proper sync. Most of them are good.

"cry me a river..." No words  :o

 

britom

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Re: Magic Lantern for 7D alpha 2
« Reply #889 on: August 02, 2013, 09:49:56 AM »
7D Builds with RAW support: http://bit.ly/14Llzda

arrinkiiii

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Re: Magic Lantern for 7D alpha 2
« Reply #890 on: August 02, 2013, 09:58:17 AM »
hahahah good one britom  and pit3k ;D


- LONG LIVE THE 7D -

pit3k

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Re: Magic Lantern for 7D alpha 2
« Reply #891 on: August 02, 2013, 10:08:19 AM »

hjulenissen

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Re: Magic Lantern for 7D alpha 2
« Reply #892 on: August 02, 2013, 10:17:17 AM »
hjulenissen: you seem to know your stuff, but from your question, I bet you did not read my paper and you did not download any DNG samples.
Correct. I have now read your paper and see that you answer my question (and then some). Excellent work!

Would have been cool if some Canon models applied ISO gain per color channel, but I guess that is inefficient from a low-level hw perspective. "white-balancing ISO" where weak color channels gets the benefit of higher ISO than hotter color channels.

It seems from your figures that you use MATLAB to some degree. Is this your personal stuff, or does the ML repository contain MATLAB models?

-h

edwmotion

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Re: Magic Lantern for 7D alpha 2
« Reply #893 on: August 02, 2013, 10:18:49 AM »
Sorry I've missed something, haven't I?

pit3k

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Re: Magic Lantern for 7D alpha 2
« Reply #894 on: August 02, 2013, 10:20:43 AM »
Sorry I've missed something, haven't I?

Look under "7D"



And please, please 25p @ 1080p

edwmotion

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Re: Magic Lantern for 7D alpha 2
« Reply #895 on: August 02, 2013, 10:41:05 AM »
raw video? damn I sold my 7D  :-\








Just kidding.  ;D

Thank you Alex. I appreciate your hard work.

obiyan19

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Re: Magic Lantern for 7D alpha 2
« Reply #896 on: August 02, 2013, 11:21:51 AM »
ML team finaly find the way for unlocked raw video on 7D at 1728 x 1156 max  res ?

wow, its a christmas today. thanks to all developping team. so, happy to see the devollopement of 7d ML go ahead  :)
600D + 7D + 5D2  // 24-105 L is ~ 100-400 L is ~ 18-200 is ~ 18-55 isII ~ sigma 50 f1.4 EX

pit3k

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Re: Magic Lantern for 7D alpha 2
« Reply #897 on: August 02, 2013, 11:27:26 AM »
ML team finaly find the way for unlocked raw video on 7D at 1728 x 1156 max  res ?

wow, its a christmas today. thanks to all developping team. so, happy to see the devollopement of 7d ML go ahead  :)

For now the values are theoretical as a1ex wrote.

pit3k

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Re: Magic Lantern for 7D alpha 2
« Reply #898 on: August 02, 2013, 11:29:42 AM »
NOW I fucked up.. EOScard crash on my.. I was not able to select the 203 alpha and it crashed.. Here is the error log...

Code: [Select]
AppName: eoscard.exe AppVer: 0.0.0.0 ModName: kernel32.dll
ModVer: 5.1.2600.5508 Offset: 00012aeb

When hitting Ports in progress I get: Invalid argument to date encode??

You can copy the files on your cf card from here: http://pel.hu/ML/magiclantern-7D.203.Alpha2.zip

jphansen

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Re: Magic Lantern for 7D alpha 2
« Reply #899 on: August 02, 2013, 11:58:16 AM »
But will that do the same job as EOScard do.. like enable bootflag and so on?

You can copy the files on your cf card from here: http://pel.hu/ML/magiclantern-7D.203.Alpha2.zip