本帖最后由 gotham 于 2009-7-7 14:23 编辑 0 K) W% Y5 _# I' K" N( S, U. b/ Z! r( Q
It is believed that "1/focal length" is used as the minimum "safe" shutter 8 `5 E5 T' S/ @7 g, \' dspeed for handheld shots. But I believe there are always some "iron hands" existed, lol