I had the same problem with the professional set OM I purchased few years
ago, the bargian OM4 was having this problem and I got it very cheap. I
removed the lens mount, clean the metal ball (for the click stopper) and
regrease it then everything was fine. It is now my mostly used and most
reliable camera. I remember the reset pin will not jump up far, just remove
the mount slowly and it should be ok.
C.H.Ling
----- Original Message -----
From: "John A. Lind" <jlind@xxxxxxxxxxxx>
> On top of all the other problems with the computer, my OM-4 has developed
a
> very stiff shutter speed ring . . . it is very difficult to turn. Right
> now it's sitting on "blue" 1/60th and I'm using it purely in TTL mode.
>
> Anyone else encounter this (what was the cause)? Is this something that
> can be (might be) fixed without too much difficulty by removing the lens
> mounting flange and cleaning things around the shutter speed ring? A bit
> leary about removing the three screws without knowing first if I need to
> watch for springs and other small parts. A bit different from the earlier
> OM bodies, the OM-4 has the reset pin also.
>
> Thanks,
> -- John
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