This quote by Bjorn Rorslett, who tests a lot of Nikon stuff is
interesting:
the issue isn't as simple as you might think. the pixel acts as a local
area integrator and a convolution kernel and this throws a spanner in
much of the existing theory. I have shot at f/32 with the 50-300/4.5ED
Nikkor on my D2X and the images are critically sharp. The same setting
with this lens using my F5 gave very soft images.
DOF theory taken from film-based systems tend to fail on digital, too.
We need a new set of criteria.
Winsor
Long Beach, California, USA
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