本帖最后由 gotham 于 2009-7-7 14:23 编辑 x: c# z% @( Y, T0 ^! B" Z' [5 Q0 u# i4 Y/ e1 Z, R5 g
It is believed that "1/focal length" is used as the minimum "safe" shutter# L- w+ M* X1 c
speed for handheld shots. But I believe there are always some "iron hands" existed, lol