本帖最后由 gotham 于 2009-7-7 14:23 编辑 # ]/ K" h- N5 ^) \ 2 p& ?* o4 P0 |- ~! u* jIt is believed that "1/focal length" is used as the minimum "safe" shutter; s2 `. O$ P# ^2 h2 V
speed for handheld shots. But I believe there are always some "iron hands" existed, lol