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Author Message   Bossman Tinkerer Username: Bossman Post Number: 88 Registered: 02-2009 Rating: N/A Votes: 0 Posted on Monday, July 06, 2009 - 09:27 pm:    Canuck Curt: It's probably internal and not any easy fix but you might try to look at two areas: remove the half-moon shaped plate or cover behind the diaphragm lever (at 6 o'clock back of lens mount)and check for obvious things like a spring off........... also remove the bottom plate and fire the shutter and watch for an area obviously not doing it's job.