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Author Message   Plaskey Tinkerer Username: Plaskey Post Number: 9 Registered: 03-2011 Rating: N/A Votes: 0 Posted on Saturday, November 03, 2012 - 01:26 pm:    I have a rather well used black OM-1n which has the shutter speeds exactly 3 speeds behind the marked - for example when set to 1/4 sec I get 1 sec (compared with my trusted Pentax SP!) - 1/2, 1 and B all behave like B. The 1/1000 is more like 1/125. It seems like a fairly easy problem to fix, but I don't know how to get at the adjustment. The only reason I am bothering - I already have a very nice OM-2n- is that I replaced the seals and cleaned the body before finding the fault!