本帖最后由 gotham 于 2009-7-7 14:23 编辑 ) ?8 w* G) C, g/ z7 I
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It is believed that "1/focal length" is used as the minimum "safe" shutter % U5 d0 m' Q- Z8 r6 K7 E% c+ yspeed for handheld shots. But I believe there are always some "iron hands" existed, lol