本帖最后由 gotham 于 2009-7-7 14:23 编辑 9 w4 Y7 X8 _( N1 k' e, ^: p9 |) N1 o* Z# K
It is believed that "1/focal length" is used as the minimum "safe" shutter : s' ^( v2 B9 |' S4 wspeed for handheld shots. But I believe there are always some "iron hands" existed, lol