本帖最后由 gotham 于 2009-7-7 14:23 编辑 2 v* h# i- I" k1 x- y: [- G* k7 { ! d h2 @6 O \. TIt is believed that "1/focal length" is used as the minimum "safe" shutter 0 C" g9 x4 d5 j. h; x2 A3 G# s1 P4 Sspeed for handheld shots. But I believe there are always some "iron hands" existed, lol