Grevture
Senior Member
First, just to make sure nobody get strange ideas - at iso 25600 I get a decent yield of images that work. It does not mean every image look as good as these examples, far from it. At iso 25600 you have to be very cautious about exposure and light. It is very easy to get ugly highlights in skin tones, and if the dancing couple in those images would have looked down, putting their faces in the shadow, they would have looked a bit murky and grainy.Thanks Grevture, nice work! You're definitely puling some nice images out at ISO 25600. What I'm seeing on mine is not nearly that clean. I haven't done any PP in an effort to see what the camera is capable of. Did you do any noise reduction to the images you posted?
But with decent light (like the TV studio this was shot in) and some care you can get a lot of useable images at 25600 (along with many noisy and dull looking ones). But, I still fins it rather amazing you can actually get any good ones at all with just some care and a little PP
When trying out a new camera like the D3s, I try to find what I would call my 'set and forget' level of iso. That is the iso setting where I can more or less stop thinking to much about where the highlights and shadows are and just concentrate on taking the images (content, timing etc) I want and knowing with some certanity most of my images will be useable without having to spend a lot of time post processing.
This level of course vary with cameras, but probably also with photographers. Others are more exposure aware (without concentrating very much on it) then I am, and therefore can have a higher 'set and forget' iso without getiing into trouble - others might be even lower then me. But for me the 'set and forget' iso for the D3 is around 3200 for most lighting situations, and with the D3s I seem to find this level at 10000 or 12800 (the jury is still out on that decision)
With my D200 it used to be iso 500 ...
The above pertains to more then just noise, it is a lot about colors, particularily skin tones (in my case). That is where for example why I rarely went much beyond iso 500 with the D200 - I had such problem getting decent skin tones in peoples faces at higher isos. Particularily if the face was partly in the shadow (like a hockey players face under the helmet). This is why the D3 was such a revelation for me when I first got it - shooting at iso 3200 with manageable noise and decent colors - wow! Now the D3s have taken this even further.
As for post processing, almost all the examples in my previous post have received (using Lightroom/ACR terminology):
- some slight WB adjustment
- a increase of Blacks, typically up to 8-12 (from 5)
- a slight decrease of Brightness, typically down to 35-45 (from 50)
- sometimes I add a bit of contrast, sometimes I change from Medium Contrast to Strong Contrast (typically in sports images for news papers)
- Sharpness at 35-40 (sometimes more for news paper images)
- Luminance noise reduction at about 15-25
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