Correct me if I'm wrong - my summary

Started Mar 4, 2012 | Discussions thread
MICHAEL_61
Senior MemberPosts: 2,124
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Re: Correct me if I'm wrong - my summary
In reply to BadBeta, Mar 4, 2012

BadBeta wrote:

2. Wrong. Lenses easily outresolves 16-18 megapixels. Most optical experts I've read seem to think 80 megapixels or so for 35mm full frame is about the limit of what makes sense. Think of the pixel densities of smaller sensor cameras, which has improved, and then multiply to the size of 35mm and you'll see that 16-18 megapixels is not anywhere near a limit.

But

http://forums.dpreview.com/forums/read.asp?forum=1032&message=40794368&q=sensor+outresolves+lens&qf=m

quote:

I am sorry, but various research has shown that, for 24x36 sensors coupled to "ideal" lenses, the sensor will "outresolve" the lens if it has more than:

just 10mp for longest visible wavelengths (red as you know)

16mp for yellow-green

30mp for the shortest visible wavelength (violet)

of course, real world lenses are not perfect

but still - if you want your results to have some real meaning, I think you should at most got to f8, or better, stop at f5.6. Indeed at f8, just 19mp are enough for the sensor to outresolve a perfect lens for longer light wavelengths.

end quote
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http://lordofthelens.co.nz/

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