本帖最后由 gotham 于 2009-7-7 14:23 编辑 - I, n, b! J; a. z$ h/ p0 {7 r* N9 `1 r8 v+ |, c6 U( R/ _. T4 ]
It is believed that "1/focal length" is used as the minimum "safe" shutter + ]( R) l; x T, p' X6 `+ p) hspeed for handheld shots. But I believe there are always some "iron hands" existed, lol