Maybe your focus screen was partially unlatched. I've seen a few Beattie
screens where the tab was in the wrong place so you ended up mounting
the screen upside down. That would throw focus off with all lenses all
the time. If mirror angle has changed that would affect infinity focus
with all lenses (sharp in finder, focus scale way off, infinity comes in
early or not at all) would be out of focus on film.
___________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743
631-424-2121 | Olympus OM Service since 1977
http://www.zuiko.com | omtech1 AT verizon.net
GeeBee wrote:
> 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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