Divide by 1.6 crop factor. So 200mm -> 1/320 sec.

来源: 2006-12-12 13:12:10 [旧帖] [给我悄悄话] 本文已被阅读:

My experience is at the short end, I have no problem holding the camera stead for 1/f (f: focal length). But at the long end, I need to go 1/2f.