本帖最后由 gotham 于 2009-7-7 14:23 编辑 & ]$ O0 j4 g6 F; r/ W. ] g3 y# q( S5 iIt is believed that "1/focal length" is used as the minimum "safe" shutter - x+ j9 b& _- ^# s/ i; h6 zspeed for handheld shots. But I believe there are always some "iron hands" existed, lol