本帖最后由 gotham 于 2009-7-7 14:23 编辑 1 W( @9 g6 _; V+ q* \
1 Y% b! K- ]5 c: H: A0 k+ e
It is believed that "1/focal length" is used as the minimum "safe" shutter ( R: f4 |" e! |5 D9 f) ]speed for handheld shots. But I believe there are always some "iron hands" existed, lol