本帖最后由 gotham 于 2009-7-7 14:23 编辑 - V% S. {: u) A# ~7 Z3 B
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It is believed that "1/focal length" is used as the minimum "safe" shutter # m9 v7 N" S/ C- sspeed for handheld shots. But I believe there are always some "iron hands" existed, lol