本帖最后由 gotham 于 2009-7-7 14:23 编辑 6 X4 T8 c' F3 C. w7 R* w8 R
& w+ n* `0 W. g+ ^
It is believed that "1/focal length" is used as the minimum "safe" shutter % [' Y: C4 I- u% c% {2 D! sspeed for handheld shots. But I believe there are always some "iron hands" existed, lol