本帖最后由 gotham 于 2009-7-7 14:23 编辑 / R/ u, w4 ~" Q0 N" N5 c
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It is believed that "1/focal length" is used as the minimum "safe" shutter 2 R% }7 r3 O) K( J% Zspeed for handheld shots. But I believe there are always some "iron hands" existed, lol