Out shooting with OM2 SP today I noticed when using the Zuiko 180mm for a
landscape shot that it didn't quite rack out to infinity when I focussed on
a distant church. It was only just short of infinity so I disregarded it.
Next shot was with the 35- 80 zoom and a boat in the foreground was about 75
ft away. When I checked the focus scale on the lens it was showing 12ft.
Despite this the boat was in sharp focus in the veiwfinder. I switched
lenses and the same thing happened with the 50mm. Ground glass image in
focus but the scale on the lens indicated much closer than the object
actuallt was.
I was resigned to a repair job so I pulled the film and loaded into another
body when I returned home. I removed the focus screen from the offending OM2
and looked for any obvious signs trouble but was unable to detect anything.
I gave the camera a good blowing out with a brush, put a lens on it and
focussed out of the window on an object that I would expect to be at
infinity. The lens scale confirmed it and racked out all the way to the
infinity symbol. Tried a couple of other lenses and all is working well.
Anyone have any ideas on what the problem might have been?
--Graham
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