本帖最后由 gotham 于 2009-7-7 14:23 编辑 6 q2 q) _) b4 J: S$ L
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It is believed that "1/focal length" is used as the minimum "safe" shutter) J1 W: z7 m4 C6 _' U- Z0 C2 Z
speed for handheld shots. But I believe there are always some "iron hands" existed, lol