Math question - sort of
In article , John Navas
wrote:
If we assume a top (not cheap) non-zoom telephoto lens will resolve 80
LPM (check the MTF charts for your lens), then the maximum resolution of
the lens on a Canon APS-C sensor of 22.3 mm x 14.9 mm (like the 7D) is
22.3 x 80 x 2 x 14.9 x 80 x 2 = 8.5 MP, far less than the 18 MP spec of
the 7D, and anything more is wasted.
nonsense. there is a very clear and visible difference between an 8 mp
camera such as a canon 20d and an 18 mp camera such as a canon 7d.
That depends on the lens.
"assume a top (not cheap) non-zoom telephoto lens"
Read what I wrote more carefully.
likewise.
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