本帖最后由 gotham 于 2009-7-7 14:23 编辑 0 h; j. X8 ^7 Y/ z, z2 S
2 ~/ o7 l+ P) y. {# ?- ]$ nIt is believed that "1/focal length" is used as the minimum "safe" shutter% Y# c- v, c+ s; ?; S
speed for handheld shots. But I believe there are always some "iron hands" existed, lol