本帖最后由 gotham 于 2009-7-7 14:23 编辑 5 A0 K6 E5 b4 R
# M3 s' g Q$ N6 C3 I- b1 d
It is believed that "1/focal length" is used as the minimum "safe" shutter 6 a( h" u/ U y vspeed for handheld shots. But I believe there are always some "iron hands" existed, lol