本帖最后由 gotham 于 2009-7-7 14:23 编辑 # C; ?' O7 k! C- j4 f6 Y$ Q" ^! F4 q
It is believed that "1/focal length" is used as the minimum "safe" shutter / L# t/ o" K9 i1 O. n+ s2 Bspeed for handheld shots. But I believe there are always some "iron hands" existed, lol