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Thread started 30 Apr 2012 (Monday) 11:20
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5D Mark II and High ISO levels (6400 n 12800)

 
rapurimanka
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Apr 30, 2012 11:20 |  #1

I'm just asking for some advises bout these iso levels. Any good teaps to clean such images? Cause sometimes i just need to work with them.

Don't wanna by MKIII :(


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Virto
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Apr 30, 2012 13:19 |  #2

Lightroom is generally pretty good about cleaning things up on its own. 6400 shouldn't come out too badly, but I wouldn't want to blow up anything at 12800 beyond web size.

Biggest issue with high-ISO shots is exposure. Get it right and you've got something to work with. get it wrong and you're in hot water.

Try posting some examples and turn image editing on and then some more folks might be interested in showing you the ropes.


Kelly - EOS 5D - EOS 40D - Rebel XS - EOS 10D - EOS 1D - SX230 - AE-1 - OM-1n - Minolta Himatic7 - EOS-1N
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rapurimanka
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May 01, 2012 01:13 |  #3

ok,

take a look at 12k and 25k here,
http://www.nicknphoto.​com/5d-mark-iii-review/ (external link)

you see, on mkii colors are different. That's the issue. I'm interested in someking of general tweak to fix these purple blur.


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rapurimanka
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May 01, 2012 01:29 |  #4

http://dl.dropbox.com/​u/5020311/Test/IMG_298​2.jpg (external link)

My work. 25k. Exported via RPP, then killed noise via lighroom, and then killed banding via topaz plugin in photoshop.


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tzalman
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May 01, 2012 05:20 |  #5

5D2, ISO 25,600
LR4: Sharpening 100/0.5/5/35
LNR 50, CNR 60

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IMAGE IS A REDIRECT OR MISSING!
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IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

Elie / אלי

  
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rapurimanka
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May 01, 2012 05:34 |  #6

You see this purple blur on left? Not ok for me :(

btw, why its "ISO speed rating: 3200" in exif?


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tzalman
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May 01, 2012 07:32 |  #7

btw, why its "ISO speed rating: 3200" in exif?

Because I shoot at ISO 3,200 underexposed and then push it 3 stops in LR. 3,200 is the highest analog (hardware) ISO in the 5D2. ISOs 6,400, H1 and H2 are digital ISOs obtained by simply multiplying the 3,200 numbers by 2, 4 or 8. I prefer to do the digital boost myself in LR.


Elie / אלי

  
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magwai
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May 01, 2012 07:39 |  #8

tzalman wrote in post #14359163 (external link)
Because I shoot at ISO 3,200 underexposed and then push it 3 stops in LR. 3,200 is the highest analog (hardware) ISO in the 5D2. ISOs 6,400, H1 and H2 are digital ISOs obtained by simply multiplying the 3,200 numbers by 2, 4 or 8. I prefer to do the digital boost myself in LR.

Is that right? I thought 6400 was a real sensor adjustment.




  
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rapurimanka
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May 01, 2012 08:05 |  #9

Ye, for me 6400 is the last hardware. While iso 50, 12800 and 25600 is software, that's why the are under special option. My thought...


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rapurimanka
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May 01, 2012 08:17 |  #10

http://dl.dropbox.com/​u/5020311/IMG_2849.jpg (external link)

What's wrong with this image? Could you tell me? Dead shadows?


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MakisM1
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May 01, 2012 09:14 |  #11

rapurimanka wrote in post #14359382 (external link)
http://dl.dropbox.com/​u/5020311/IMG_2849.jpg (external link)

What's wrong with this image? Could you tell me? Dead shadows?

Biggest problem is the White Balance. Normal night city shots are mostly lit with sodium and fluorescent lights. Pretty difficult to correct afterwaeds, unless you have a shot of a color target.

You could probably benefit with more light in the photo.


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OS: Linux Ubuntu/PostProcessing: Darktable/Image Processing: GIMP

  
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rapurimanka
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May 01, 2012 09:33 |  #12

http://dl.dropbox.com/​u/5020311/IMG_2849_2.j​pg (external link)

Better? Tried to pickup custom white balance from church on left.


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MakisM1
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May 01, 2012 10:33 |  #13

I think it is better, but the results are astonishing if you shoot a target and make a Custom White Balance ON THE SCENE!


Gerry
Canon 5D MkIII/Canon 60D/Canon EF-S 18-200/Canon EF 24-70L USM II/Canon EF 70-200L 2.8 USM II/Canon EF 50 f1.8 II/Σ 8-16/ 430 EXII
OS: Linux Ubuntu/PostProcessing: Darktable/Image Processing: GIMP

  
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rapurimanka
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May 02, 2012 04:50 |  #14

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


Take a look at mark ii, more blueish there. Any way to kill such noise?

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5D Mark II and High ISO levels (6400 n 12800)
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