本帖最后由 gotham 于 2009-7-7 14:23 编辑 4 K3 c3 W8 F9 X5 X4 @" V. Z6 U' C- D' i
It is believed that "1/focal length" is used as the minimum "safe" shutter7 X5 q: L$ e5 {5 t/ ~
speed for handheld shots. But I believe there are always some "iron hands" existed, lol