Thom Hogan's review of the A7/A7r

Started 4 months ago | Discussions thread
Erik Magnuson
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Re: Thom Hogan's review of the A7/A7r
In reply to Jeff Kott, 4 months ago

Jeff Kott wrote:

Actually, there was one piece of new info. He says the optimal ISO for normal exposures is 200. Since the dynamic range according to DXO is 14.07 at ISO 100 and 13.15 at ISO 200, I'm not sure why he says this. Can anybody explain?

You should send him an email asking for clarification.  My guess is that it's the difference between theory (DxO) and practice with actual raw converters like ACR/LR.  DxO DR is only concerned with the top and bottom and not the vast middle.

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Erik

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