本帖最后由 gotham 于 2009-7-7 14:23 编辑 ( l( m& W( l' S% q* Z
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It is believed that "1/focal length" is used as the minimum "safe" shutter9 N9 g* a R3 h( E3 ^* j" `& o) U) ]; J
speed for handheld shots. But I believe there are always some "iron hands" existed, lol