How much resolution decrease as we raise the ISO ?

Started May 18, 2012 | Discussions thread
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Re: How much resolution decrease as we raise the ISO ?
In reply to asad137, May 18, 2012

asad137 wrote:

Rick Knepper wrote:

Could you provide the name of the article or the link? Using the key words in your post, searches of his web site do not produce anything useful. As for native ISOs e.g. 100, 200, 400 etc what was his opinion?

I found it quite easily searching for "Philip Bloom iso":

This is a video test, but I would assume the results would translate to stills.

video has tone curves and all baked in so the result don't appy to raw stills, the iso160 and 200 are the same thing, if you apply -1/3 ec to iso160 you get same as if you used iso200 or if you used iso200 and applied ec +1/3 you get exact same final result as if you shot iso160 (the raw range is a bit different but the final result is exactly the same, they measure to the same dynmaic range and middle gray SNR)

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