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Because it is like that
What issues ur facing ? Ru trying it on 5d3?

some more developments
tried a landscape shot today
here is final version



Dual ISO DNG
https://www.dropbox.com/s/rradcr7tonrggv0/IMG_0868-dualiso.DNG?dl=0

Native ISO DNG
https://www.dropbox.com/s/3vnmsy2uimnnrkc/IMG_0862.dng?dl=0

@mothaibaphoto thanks for ur response. Usually people talk here in highly complex "Developers" language so i thank u for talking is a simple manner. As i said i just explored these added features of ML despite using it on my 60D for last 2 years for just intervalometer, but on 6D im trying to understand these new features. Thats why u will see me in almost every thread on this forum trying to understand basics. This crop mode silent pictures i have still not understood.

@mothaibaphoto thanks for ur reply. Im still learning this dual iso thingy. Have u observed any drop in sharpness?

SNR: Dmilligan and I already pointed that out. Use crop mode. No binning. Or wait for FRSP.
15 sec: At time of writing you have to live with that limitation.

Plz pardon me what's is crop mode n what's binning? (Plz don't ban me if its very basic question)

And here we are running in circles: http://www.magiclantern.fm/forum/index.php?topic=5240.msg134066#msg134066
When you talk about DR you are actually referring to SNR (signal to noise ratio).
As dmilligan pointed out you have no proof of less DR delivered but shown what he admitted: Binning is deminishing image quality. If you want to compare DR you have to use silent pic in crop mode.

Thanks for ur time brother I'm bothering u for last two days
So whatever it is if I'm naming it wrongly, I don't mean to offend you or team of developers. So is there any way to get rid of this SNR? Especially I'm talking with reference to Milky Way shots. Can we even shoot long exposures in silent picture (I've read max is 15 sec) if not then ISO will have to be high meaning very little recovery from shadows/foreground.
Same goes to day light shots, which can be addressed with using ND filters but night gonna be an issue especially Milky Way

Recovering shadows not exposure boost over all
Try to lower highlights to -100 n boost shadows to +100 u will see which has better recovery

CR2


Silent pic

Read reply #503

okay here are files, difference of resolution and one can further see in light room how less details one can extract from shadows (isnt it dynamic range) i think at the moment the info is gathered from live view (movie mode) n this is max info a DNG of silent pic can retain. For comparison i have uploaded full resolution CR2 n Silent pic DNG.

Silent Pic DNG: https://www.dropbox.com/s/gzwtt1u9itlx729/Ipad%20SIlent%20pic.DNG?dl=0

Normal CD2: https://www.dropbox.com/s/u69rfn51u61j13x/Ipad%20CR2.CR2?dl=0

It has nothing to do with better DR. ML has a silent pic function right now but output is cropped/LV resolution. Full Resolution Silent Pic (FRSP) is able to use all the sensor's pixels.

yes i just tried Silent pictures option and max resolution i am getting is 1824x1224 on 6d (thats what it shows on screen in live view)
so how to enable FRSP on 6D, im using 29 Jan 2015 Nightly build

So do we have better dynamic range dng now from this?

Collection of most representative files to illustrate the stripes issue:
https://www.dropbox.com/s/bdtgmmpzdml54kn/D27A7666.CR2?dl=0
https://www.dropbox.com/s/xxwmvs7opub9hnt/D27A7705.CR2?dl=0
https://www.dropbox.com/s/66vvrzmjejl8g9t/D27A7704.CR2?dl=0
https://www.dropbox.com/s/qg9oos89c935vvs/D27A7695.CR2?dl=0
https://www.dropbox.com/s/sodljwjf9vlufmm/D27A7691.CR2?dl=0
https://www.dropbox.com/s/857n3dmcg7jh89n/D27A7694.CR2?dl=0
https://www.dropbox.com/s/2ygtnvqhfn2bquc/D27A7690.CR2?dl=0
https://www.dropbox.com/s/k2ug7pwayxeb1gz/D27A7699.CR2?dl=0

i think ur using some extreme value for recovery ISO in ur method

correct me if im wrong
ru setting ur base ISO as 10000 n recovery ISO at what value?
in ML at the moment (Jan 29 NBuild) recovery ISO is maximum upto 6400
so if u set ur base ISO higher than or equal to recovery ISO (6400 in ur case) i am sure u will get such bands. So make sure ur base ISO (which u select from camera menu) is not more than (or equal to) ur recovery ISO
ie 100-6400, 1600-6400, but never 6400-6400 or 10000-6400

have tested Nightly Build 29 Jan 2015 build
only tried Dual ISO n ETTR picture mode n it works like a charm
no issues at all no crashes or something
will update if i had success with raw video too
way to go guys keep this place active and alive

Depending on your Lightroom version, after you export, it will only show the negative flagged original cr2 image. That is because you are in the LR develop mode. You have to switch from develop mode to library mode to see the new dual ISO dng in the same folder. It's a bug.

i tried that also and even tried to exit lightroom even n relaunching it re-syncing the library
as i said im on LR 5.7 so will downgrading lightroom to like 5.4 5.6 etc will solve this issue?

Audionut linked to this page already. There are two alternatives to try out besides lightroom. BArracuda and an postprocessing exe file.
http://www.magiclantern.fm/forum/index.php?topic=7139.0
Good luck. I,m on mac so can,t help you further.

i have mac osx installed on my pc also, but i just tried in windows
when cr2hdr exports dng it renames it but lightroom is not updating its library n is showing old file. So i relocated it clicking that small exclamation mark on the thumb nail to relocate the DNG n reloaded it in library. Now artifacts are gone. I hope tomorrow morning ill take gud sunrise shots n will be able to share with u guys
Plz devs look into this, i was using V3.0 Beta 3 with Lightroom 5.7. I will now try 2.1 version lets hope this small error is not there.

cr2hdr: a post processing tool for Dual ISO images

Last update: 0eabcb0 on 2014-08-29 12:42:54 UTC by a1ex:
cr2hdr exposure matching: when all else fails, brute force prevails...

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)

Input file      : C:\Users\babarasghar\Pictures\2015\2015-02-08\IMG_0832.dng
Camera          : Canon EOS 6D
Camera model    : Canon EOS 6D
Full size       : 5568 x 3708
Active area     : 5496 x 3670
Black borders   : 72 left, 38 top
Black level     : 2046
ISO pattern     : dBBd RGGB
White levels    : 15184 13783
Noise levels    : 4.69 7.86 7.97 4.70 (14-bit)
ISO difference  : 4.01 EV (1607)
Black delta     : 2.98
Dynamic range   : 11.45 (+) 10.52 => 14.53 EV (in theory)
AMaZE interpolation ...
Amaze took 2.07 s
Edge-directed interpolation...
Semi-overexposed: 30.99%
Deep shadows    : 17.02%
Horizontal stripe fix...
Full-res reconstruction...
ISO overlap     : 4.4 EV (approx)
Half-res blending...
Chroma smoothing...
Building alias map...
Filtering alias map...
Smoothing alias map...
Final blending...
Noise level     : 25.81 (20-bit), ideally 25.81
Dynamic range   : 14.99 EV (cooked)
Black adjust    : -16
AsShotNeutral   : 0.88 1 0.21, 2000K/g=0.64 (gray max)
Output file     : C:\Users\babarasghar\Pictures\2015\2015-02-08\IMG_0832.DNG (already exists, overwriting)
C:\Users\babarasghar\Pictures\2015\2015-02-08\IMG_0832.DNG: copying EXIF from C:\Users\babarasghar\Pictures\2015\2015-02-08\IMG_0832.dng

n here is final image

Are you using the LR plugin from @kitcheof?

finally some help
yes i am using the beta version

Still no success, it's still the same issue. I'm on windows and I'm using 3.0 beta. The problem is same, the cr2hdr when exports it overwrites the original dng (crested during ist import) but I can't then add the newly created dualiso dng. What am I missing here?

Thanks for the motivation guys

okay i am trying but no help from ur side hero member

okay so ist i import cr2 from sd card
currently my LR5 converts cr2 to dng
n then without any editing i export it?
after exporting it then re-import new dng with name like IMG_0828-dualiso.DNG?
but problem is it doesnt put these files in a new subfolder in my catalog folder
im sure i am doing some very noobish mistake here n missing something
so plz guide me step by step
sorry for ruining ur weekend guys

ok boss! thanks for speedy replies guys

How the plugin works:
Pictures selected to export are listed
Only CR2 and DNG files are supported (if file is not present, skip)
Each picture, one by one is converted with cr2hdr (with defaults or custom args)
if cr2hdr 20bit and --same-levels are selected, all pictures are converted in the same time
Picture is moved to subfolder
Picture is renamed with suffix
Picture is imported into Lightroom catalog
Label is added
Keywords are added (and created if needed)
Synchronize keywords with original file
Keyword Dual ISO raw or no Dual ISO is added to original file
Parse log file to fill metadata with cr2hdr results
Add picture to all collections
Keep or remove log file
Set the flag of the original file

is this ur talking about? well its kinda confusing for me
do we import these cr2 files normally like any other cr2?
we edit the dual iso cr2 like we normally edit any other raw file? n once we r done editing we then export it using this plugin? n when its exported where it lands? in which folder?

thanks audionut for separating this discussion from the other thread, sorry i was using wrong thread
guys is there any video tutorial for this im kinda noob here coming back to this ML after a very long time

Which cr2hdr version are you using?
Which settings in your cam?

You may upload an example and a processed output file. We may be able to run it, too and compare results.

cr2hdr version? i need some guidance here,

my final images after a quick pp in lightroom 5
at ISO 200 with ML diabled


at 200-1600 with no ETTR enabled


CR2 links ill upload in a while on dropbox

dual iso file
https://www.dropbox.com/s/adfzxou10tjzs9y/IMG_0828.CR2?dl=0

how u guys r getting such sharp images using dual iso/AETTR?
i tried dual iso with 29th jan 2015 Nbuild on my 6D n im getting horizontal banding quite visible
how to avoid that n get better images?

so any improvement in silent pic? do we get true raw pictures in silent picture timelapse mode?

Can't u guys open the links I have attached?
What other proof u need?
Why don't u tell me how should I take pictures n then post so that you see them and then give a verdict.