本帖最后由 gotham 于 2009-7-7 14:23 编辑 , P5 [) O% U% S$ P: u4 }6 }7 E6 S; I4 S4 r- L
It is believed that "1/focal length" is used as the minimum "safe" shutter * M9 S7 Y, p+ W# F. R% A3 {speed for handheld shots. But I believe there are always some "iron hands" existed, lol