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Message: <blockquote data-quote="gqtuazon" data-source="post: 76780" data-attributes="member: 6573">Try Thom Hogan's review. I've copied and pasted the article to make it more convenient.<a href="http://www.bythom.com/nikond800review.htm" target="_blank">Nikon D800 and D800E Review by Thom Hogan</a>Resolution, Diffraction, and To E or Not to EQuote: "Here's  the thing: certainly when we were at 12mp and lower we were living in a  sort of Disneyesque world where everything was slightly sharper than  reality. What do I mean by that? Diffraction wasn't getting fully  recorded or seen in most cases. A D3 at f/16 was just starting to show  visible differences on edges at 100% view for most people (though  diffraction was already present, it wasn't clearly destroying edges  enough for people to get upset). Some of this has to do with the way  Bayer sensors record data. I've been saying for a long time that  diffraction really only starts to be fully recorded by a Bayer camera  when the Airy disc becomes about twice the size of an individual  photosite. It's not a perfect predictor, since there's an optical system  that sits above the photosite (AA/IR filter, which may have a waveplate  in it, microlenses on the sensor itself). But it's been a "good enough"  predictor for some time now. So  what do we see on the D800 and D800E? At and above f/8 diffraction is  being fully recorded (at f/8 the Airy disc diameter is 10.7 microns,  while the D800 sensor photosite implied diameter is a bit less than 5  microns). Even at f/5.6 the Airy disc is big enough to be producing  clearly visible diffraction." end quote.</blockquote>

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