Thomas Bantel wrote:
Hmm, I really like my 20mm lens. While there may be a glimpse of truth
in some of his findings, I don't find it *that* bad. Corner sharpness
is way better than my 20-35L will ever be, same goes for light falloff.
Honestly, since I bought this used 20mm prime, my 20-35L doesn't see
much use anymore. Of course, different people have different meanings
on what can be expected from a lens. Realistically, I wouldn't expect
a 20mm lens to show no light falloff, neither stopped down nor wide open.
I don't have the formulae handy, but I think about two full stops of
falloff would be "normal" for a classical lens design 20mm. It is less,
IMHO, for the EOS 20mm prime, due to the retrofocus design.
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Hi Thomas,
Even though he did not like the lens, if you like it use it. Alfred
Eisenstadt once said he did not care about lens tests. If he liked a lens
and the results it provided, he used it. Considering his reputation, it is
some very good advice. A good image is always a good image. A sharp image
with poor composition is still a poor image.
Peter K
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