本帖最后由 gotham 于 2009-7-7 14:23 编辑 & {3 `) F3 w9 J0 _0 m6 A6 d 0 U3 X0 g5 p n" w* s. EIt is believed that "1/focal length" is used as the minimum "safe" shutter : w. o2 n' F. G$ v& t8 F; uspeed for handheld shots. But I believe there are always some "iron hands" existed, lol