Thom Hogan's review of the A7/A7r

Started Mar 10, 2014 | Discussions thread
Shop cameras & lenses ▾
Erik Magnuson
Forum ProPosts: 12,177Gear list
Re: Thom Hogan's review of the A7/A7r
In reply to Jeff Kott, Mar 10, 2014

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.

-- hide signature --


 Erik Magnuson's gear list:Erik Magnuson's gear list
Canon EOS 5D Mark II Canon EOS 450D Sigma SD10 Sony Alpha NEX-5 Nikon D3200 +28 more
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
(unknown member)
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow