The Sony A7s - Birders' dream camera?

Started Jun 5, 2014 | Discussions thread
GaryW Veteran Member • Posts: 8,544
Re: The Sony A7s - Birders' dream camera?

parallaxproblem wrote:...

After a long discussion on this subject with Jay Ell it would appear that in most cases resizing a high MP sensor image to the same size as a lower MP sensor image will have a very similar noise profile to that shown on the low MP sensor as 'shot noise' is a much more significant component of sensor noise than 'read noise':

http://www.dpreview.com/forums/post/52714686

This makes one wonder if the 'excellent noise response from low MP sensor' which the A7s is proposing is simply a marketing trick and whether we would get the same results from a 36MP sensor image downsized to a 12MP equivalent

Was t this the case between the Nex-7 and the 16mp Nexes?  But there were always those complaining that the Nex-7 was noisier.  Certainly at 100% views, but that's hardly a fair comparison.

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DUMP the HUMP! A5000 & A6000 success.... campaign for *REAL* NEX-5 and NEX-7 replacement bodies
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Gary W.

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