D600-D800 high ISO RAWs compared

Started Sep 15, 2012 | Discussions thread
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Emacs23 Regular Member • Posts: 454
Re: Why not compare by downsampling them both to the same size

Different shutter speeds mean either real ISO 6400 value of D600 is higher or different lightning conditions for these shots. Both these things are unacceptable for certain ISO comparison. Any conclusion made from these samples is invalid.

Raul wrote:

Emacs23 wrote:

I noticed their D800 ISO 6400 raw has 1/250 exposure, while the D600 only 1/320.
So, it's enough not to use their shots for any kind of estimation.

The difference in exposure affects what, so as to make comparison invalid?
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