本帖最后由 gotham 于 2009-7-7 14:23 编辑 s! Z" r- n7 C5 T% U# `. {" m
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It is believed that "1/focal length" is used as the minimum "safe" shutter 8 f. i6 a5 c: M, ~% Bspeed for handheld shots. But I believe there are always some "iron hands" existed, lol