本帖最后由 gotham 于 2009-7-7 14:23 编辑 9 b/ }7 g# T' ?: p. S8 y * N; s: ]+ u. k; `8 v, t) PIt is believed that "1/focal length" is used as the minimum "safe" shutter& @+ \) c- x4 d! L4 Z6 e
speed for handheld shots. But I believe there are always some "iron hands" existed, lol