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Author Message   Hovaness Tinkerer Username: Hovaness Post Number: 77 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Sunday, June 07, 2009 - 07:49 pm:    My OM1 has developed a mirror return problem. Every few times the shutter fires, the mirror does not return to the correct position. It stops a few mm from the support pin. When I move the mirror by hand, I can sense friction in the mechanism. Is there any way I can fix this without pulling out the mirror cage assembly?