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Author Message   John_shriver Tinkerer Username: John_shriver Post Number: 42 Registered: 12-2006 Rating: N/A Votes: 0 Posted on Tuesday, March 31, 2009 - 07:41 pm:    Late_starter: I'd expect 1/500 to really be 1/300 on a leaf shutter. The highest shutter speed is often optimistic. Also, the high shutter speeds are only accurate at wide apertures, otherwise shutter efficiency gives you longer than expected exposures at small apertures. If the rest of the speeds are accurate, it's accurate. You could clean it, and perhaps the leaves if they are dirty, but don't remove the slow-speed gear train, as it's position is how the shutter speeds are calibrated.