本帖最后由 gotham 于 2009-7-7 14:23 编辑 $ ~# P. j$ m% B }( s 9 Z3 d, s3 f3 L: ]5 L% t1 nIt is believed that "1/focal length" is used as the minimum "safe" shutter. P, ?. N2 j0 v f
speed for handheld shots. But I believe there are always some "iron hands" existed, lol