Author Topic: Dual ISO - massive dynamic range improvement (dual_iso.mo)  (Read 2156878 times)

a1ex

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riclim

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1851 on: March 15, 2014, 05:05:04 AM »
Hello everyone, i want to ask, why my Canon 1100D using Magic Lantern latest nightly build Dual ISO shoot will like this? It look many line


ted ramasola

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1852 on: March 15, 2014, 05:32:23 AM »
Hello everyone, i want to ask, why my Canon 1100D using Magic Lantern latest nightly build Dual ISO shoot will like this? It look many line

Read the white paper first on dual iso before you use this and ask questions. It on the first post.

heres the white paper on it. https://bitbucket.org/hudson/magic-lantern/downloads/dual_iso.pdf
5DmkII  / 7D
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riclim

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1853 on: March 15, 2014, 05:38:17 AM »
Read the white paper first on dual iso before you use this and ask questions. It on the first post.

heres the white paper on it. https://bitbucket.org/hudson/magic-lantern/downloads/dual_iso.pdf

Ok, thanks, i will read soon.

riclim

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1854 on: March 15, 2014, 06:38:49 AM »
Read the white paper first on dual iso before you use this and ask questions. It on the first post.

heres the white paper on it. https://bitbucket.org/hudson/magic-lantern/downloads/dual_iso.pdf

Hi friend, i read it  already, i saw that "3 ADTG/CMOS register tweaking", but it showing explain some code, i can't understand, i'm still confuse of it.

And i read many page of this topic too, i found some people is after shooting Dual ISO as CR2 photo, then drag the file to "cr2hdr.exe" then will be convert to DNG file with dual ISO combie.

Dual ISO is only success with this cr2hdr.exe software or got any solution can direct perfect shoot in the camera?

Hope someone can let me know the clearly answer, thanks  ;)

Audionut

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1855 on: March 15, 2014, 06:40:51 AM »
Postprocessing

- For CR2 files: cr2hdr.c (Windows:cr2hdr.exe). It requires dcraw and (optional) exiftool in your executable path (they are in the zip). Drag and drop the CR2 files over cr2hdr.exe.

Update by RenatoPhoto:
For Mac download:
Mac GUI for cr2hdr: https://bitbucket.org/a_d_/magic-lantern/downloads/OSX_cr2hdr_app.zip
dcraw and exif tool: https://bitbucket.org/a_d_/magic-lantern/downloads/OSX_cr2hdr.zip
Rename cr2 to capitals CR2 using: http://namechanger.en.softonic.com/mac
Also, once you've renamed them to .CR2, the newest CR2HDR allows you to drag and drop the entire folder to the icon.
---------------------
For automatic script using Multiple Instances of cr2hdr see the excellent:
http://www.magiclantern.fm/forum/index.php?topic=8520.0


- For RAW video files: latest raw2dng.exe. extract the DNGs with any method you like (e.g. raw2dng), then drag the DNG files over cr2hdr.exe

- To get a natural HDR look: try my automatic color grading script.


Also, please don't create duplicate posts in the forum.

riclim

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1856 on: March 15, 2014, 06:53:54 AM »

Also, please don't create duplicate posts in the forum.
ok, thanks and sorry for the duplicate posts.

For this DualISO shooting, it is only the way using the CR2 file convert to DNG file using "cr2hdr.exe"? No other way, right?

Audionut

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1857 on: March 15, 2014, 06:56:47 AM »
What's the matter with cr2hdr?

riclim

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1858 on: March 15, 2014, 07:11:02 AM »
What's the matter with cr2hdr?
Maybe i misunderstanding of the Dual ISO function, i think it is direct adjust and shoot will get effect view in camera.
But i shoot every Dual ISO photo will get whole line texture picture like the photo i share.

Now i understand the Dual ISO function photo after shoot the CR2 file then need using computer cr2hdr.exe convert to DNG file only get the perfect Dual ISO image.


Audionut

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1859 on: March 15, 2014, 08:55:35 AM »
Every Dual ISO photo will have line texture.  Yes.

Because it captures extra dynamic range in this way.

Process with cr2hdr.  Gives DNG.  This DNG looks like Normal Shot.  But this DNG has much less noise.

Raise exposure/shadows in post process.

riclim

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1860 on: March 15, 2014, 10:54:03 AM »
Friend, thank you so much, now i 100% understand of the function already.  :D

After shoot the CR2 with dual ISO, then use cr2hdr.exe make the DNG file, it can open in photoshop like RAW file, it will less noise and it can adjust recovery/shadow until a perfect HDR photo, awesome !!!
 ;)

Nice works, thanks again  ;D

albert-e

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1861 on: March 15, 2014, 04:17:32 PM »
I'm using Nightly Build Feb-2014-02-18. Question: Does Dual ISO works on 60D?

Thanks.

Audionut

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arturochu

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1863 on: March 15, 2014, 04:48:37 PM »
Try this one: www.magiclantern.fm/forum/index.php?topic=8850
I don't have bridge  :-\ bummer, i'll have to wait for a cr2hdr fix
Chu

albert-e

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1864 on: March 15, 2014, 05:02:32 PM »
http://nanomad.magiclantern.fm/jenkins/features.html

Why such an old build?

Thanks Audionut, that matrix helps me to understand the features on Nightly Build. Are they updated in cases where new features for a camera?
I'll try and download/test the latest build.

Thanks again> :))

a1ex

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1865 on: March 15, 2014, 05:05:42 PM »
Does anyone think we are so crazy to check all that stuff manually? :D

albert-e

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1866 on: March 15, 2014, 08:16:20 PM »
I meant to say "Are they updated in cases where there is new or added ML feature or functionality?". I'm just saying....

a1ex

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1867 on: March 15, 2014, 08:18:51 PM »
They are generated by the build script (it greps the source code and checks what it finds enabled where).

l_d_allan

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1868 on: March 16, 2014, 10:42:23 AM »
http://nanomad.magiclantern.fm/jenkins/features.html

This features. html was built on Jan 21, 2014. Has there been an update since then that would indicate what works or not with the 6d?

a1ex

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1869 on: March 16, 2014, 10:48:33 AM »
Hit F5, it was a broken redirect. You should get redirected here: http://builds.magiclantern.fm/#/features

Marsu42

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1870 on: March 16, 2014, 11:44:47 AM »
Friend, thank you so much, now i 100% understand of the function already.  :D

Not quite - dual_iso has some drawbacks, you're not getting something for nothing: There is reduced resolution on both sides of the histogram, so if one side matters more to you you'd probably better off with a normal cr2 and accept noisier shadows . Plus dual_iso has the whole cr2hdr postprocessing overhead and wb in acr is currently broken.

Oswald

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1871 on: March 16, 2014, 12:00:57 PM »
I have eos m. Dual iso work properly on video but how I take picture with dual iso? I'm noob. :D

Edit: now i got it. :D
7D, EOS-M & 100D.100b ΒΆ  Sigma 18-35mm, Canon 50mm F1.8, 22 STM, 8-48mm f1.0, 18-55 EF-M STM

l_d_allan

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1872 on: March 18, 2014, 09:03:05 PM »
Hit F5, it was a broken redirect. You should get redirected here: http://builds.magiclantern.fm/#/features
Thanks.

I did notice there were two columns for 700d. I infer one of those should be 70d? (the blank column?)

a1ex

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1873 on: March 18, 2014, 09:40:36 PM »
Ah, the script got confused by upgrading 700D 111->113.

Toffifee

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Re: Dual ISO - massive dynamic range improvement (dual_iso.mo)
« Reply #1874 on: March 19, 2014, 01:43:57 AM »
cr2hdr is a single core program right?
On my macbook it stays around 97-99% consistently.

How hard would it be to make it multi-threaded so that it could utilise all cores? maybe the windows version is multi-threaded?