本帖最后由 gotham 于 2009-7-7 14:23 编辑 * W! f; B7 R. N
3 C. s0 m) U3 A0 d0 }
It is believed that "1/focal length" is used as the minimum "safe" shutter: y7 j3 c ]+ U( s, x! W; ]. `
speed for handheld shots. But I believe there are always some "iron hands" existed, lol