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Jerry Coffin earned this badge 6 times
mar 11 at 19:44Why would I want to select an autofocus point?
feb 5 at 8:37What is moiré? How can we avoid it?
may 2 '12 at 14:49Why no zoom lenses below f/2.8?
oct 10 '11 at 7:34What is the difference between a pentaprism and a pentamirror?
may 10 '11 at 20:03Why aren't all viewfinders 100%?