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Author Message   Charlie Tinkerer Username: Charlie Post Number: 93 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Tuesday, September 04, 2007 - 06:12 am:    A leaf shutter is exposing the whole frame at one time while a focal plane shutter is exposing only a slit at one time which is dragged across the frame. The electronic flash synch time is an indication of the time it takes to expose the whole frame with a F/P shutter.