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Thread started 23 Aug 2013 (Friday) 01:26
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Working on high iso (full frame)

 
rapurimanka
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Aug 23, 2013 01:26 |  #1

Since i'm not a pro photographer, i don't take much equipmenet with me. Only camera and maybe a flash. Sometimes i'm shooting my friends in really hard conditions. When i was on 5dmk2 is was pain in the ass to shoot even on 6400 iso. But now, with 6d, i can capture even on 25 600 without problem.

But still, guys, what techics do you use to work with high iso images?

Take a look at this one:

https://dl.dropboxuser​content.com/u/5020311/​share/IMG_6013.CR2 (external link)
Was captures in 25600 iso.

And this one, 25k too:

https://dl.dropboxuser​content.com/u/5020311/​share/IMG_6027.CR2 (external link)

Maybe there is a was to make them better? Especially first one.


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JeremyKPhoto
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Aug 23, 2013 01:34 |  #2

I fixed the first one :). But in order for me to post it you need to go to the user CP and turn on "ok to edit my images".
user cp > edit profile


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rapurimanka
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Aug 23, 2013 01:43 |  #3

Ratjack wrote in post #16232532 (external link)
I fixed the first one :). But in order for me to post it you need to go to the user CP and turn on "ok to edit my images".
user cp > edit profile

Done :)

p.s. you guys really serious about this copyright crap ;)


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JeremyKPhoto
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Aug 23, 2013 01:49 |  #4

I just didn't want to get in any trouble with the mods :P

Here are the adjustments I made in lightroom
WB: Temp 2595
Tint +18
(had to really guess on the white balance :P ) The skin colors still seem a bit off.

Contrast + 31 (high ISO really kills contrast)

Noise reduction 38
Sharpening 79 (went high to try and bring back some details from noise reduction)


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alasavio
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Aug 23, 2013 03:18 |  #5

My choice would be to go to black and white... The color cast is quite strong and I had trouble getting it where I wanted it...

I use Lightroom to make to color and overall image tweaks. The process changes based on what the image needs. But, noise reduction, curves, saturation, sharpening, exposure are almost always used.


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kin2son
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Aug 23, 2013 03:35 |  #6
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I just had a look at the RAW files, I know they are ISO25600, but both look absolutely useless to me.

Then I'm a believer of 'just because you can, doesn't mean you should'.

Anyway, I just pp the first pic, it's best to be B&W imo, so here it is -

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

IMG_6013-Edit (external link) by kin2son (external link), on Flickr

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JeffreyG
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Aug 23, 2013 05:30 |  #7

Both of these images can be corrected with some NR, and to me the noise is not so high that they cannot be corrected that way without destroying detail.

Based on the above comments I will suggest a couple other notes:

The first picture was taken in ambient light from some kind of low-cost vapor discharge lamp. This kind of bulb emits light that is nearly just one frequency. The result is an incomplete color spectrum that will result in uncorrectable color casts. You can play around with color temp, hue etc. forever and never fix the color. That's why both previous posters were right to suggest a B&W conversion.

In general, avoid this kind of terrible outdoor lighting for photography. If you do shoot in it, consider either lighting the scene yourself with flash or making do with B&W conversions.

To my eye neither example photo is especially sharp, and the first really seems to lack detail. I think Kin2son did a pretty good job of compromising between pulling out the detail with sharpening while smearing the noise with NR. Note that when you are leaning on an image this hard with processing to try and save it, the right amount of both sharpening and NR will be completely dependent on the intended output size.


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rapurimanka
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Aug 23, 2013 06:14 |  #8

The first picture was taken in ambient light from some kind of low-cost vapor discharge lamp. This kind of bulb emits light that is nearly just one frequency. The result is an incomplete color spectrum that will result in uncorrectable color casts. You can play around with color temp, hue etc. forever and never fix the color.

That's really interesting info and i should dig in it. Cause looks like we have a lot of such lamps on street in Moscow.

Anyway, thank you all guys :)


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2slo
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Aug 23, 2013 06:36 as a reply to  @ rapurimanka's post |  #9

To get a better starting point with a difficult light source such as the above, take a custom white balance (well explained in the manual) rather than AWB or one of the presets. You can change this in LR but it helps if it's closer to start with.




  
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Aug 23, 2013 06:47 |  #10

Since the 6D is a stop or less better than the 5D2, the same tricks would apply. Shoot raw, expose properly or even go to the right if possible, remove noise first in the image, then do the rest of your image processing like contrast, saturation, controlled sharpening, etc. Make sure you use good software tools to do this, like DPP or LR, then photoshop, noiseware or noise ninja, etc.

If the 5D2 6400 images were painful to you, then the 6D 12800 images would also be, unless you are using the in-camera JPGs, where Canon fixed up their JPG and noise software.

The 5D3 12800 shots are very easy to work with, but 25600 takes a bit more diligence.

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rapurimanka
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Aug 23, 2013 06:53 |  #11

If the 5D2 6400 images were painful to you, then the 6D 12800 images would also be, unless you are using the in-camera JPGs, where Canon fixed up their JPG and noise software.

6400 was bad because of banding and low frequency noise. 6d is clean up to 25600 terrible noise is only on 50k and 100k iso's.

I'm just wondering how to deal with Lumiance noise. Cause killing it i'm also killing details...


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kin2son
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Aug 23, 2013 07:17 |  #12
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Anyway here's the 2nd pic...

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

IMG_6027-Edit-Edit (external link) by kin2son (external link), on Flickr

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Aug 23, 2013 07:24 |  #13

rapurimanka wrote in post #16232873 (external link)
6400 was bad because of banding and low frequency noise. 6d is clean up to 25600 terrible noise is only on 50k and 100k iso's.

I'm just wondering how to deal with Lumiance noise. Cause killing it i'm also killing details...

Not when you compare raw to raw at the same exact exposures. We have dug through many such samples already. In fact the 7D and 5D3, for example has less than 2 stops difference, and the 6D is marginally better than that, from what others have seen. Banding issues being improved, I can understand, that has been a Canon plague for years and years now.


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Lester ­ Wareham
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Aug 23, 2013 08:04 |  #14

rapurimanka wrote in post #16232511 (external link)
Since i'm not a pro photographer, i don't take much equipmenet with me. Only camera and maybe a flash. Sometimes i'm shooting my friends in really hard conditions. When i was on 5dmk2 is was pain in the ass to shoot even on 6400 iso. But now, with 6d, i can capture even on 25 600 without problem.

But still, guys, what techics do you use to work with high iso images?

Take a look at this one:

https://dl.dropboxuser​content.com/u/5020311/​share/IMG_6013.CR2 (external link)
Was captures in 25600 iso.

And this one, 25k too:

https://dl.dropboxuser​content.com/u/5020311/​share/IMG_6027.CR2 (external link)

Maybe there is a was to make them better? Especially first one.

Please keep to the image posting size limits. Take the time to read the image posting rules at https://photography-on-the.net/forum/showthre​ad.php?t=51052


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Aug 23, 2013 08:53 |  #15

As everyone will tell you correct exposure is everything. Underexposure is a killer.

Here is my 5D2 at ISO 6,400 with a flash. A bit of NR using PS.

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Here is a recent one from a vacation. 5D3 @12,800. No flash and no NR.

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