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[OM] Re: Focus problem

Subject: [OM] Re: Focus problem
From: "GeeBee" <graham@xxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 28 Aug 2006 20:39:08 +0100
Hi John,

Thanks for your input. I did remove the screen when I gave the camera a good 
blow out and I was very careful to check that the screen was in place. 
Whatever the problem was it seems to be cured and I encountered no problems 
today.

--Graham

----- Original Message ----- 
From: "John Hermanson" <omtech1@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Monday, August 28, 2006 3:16 PM
Subject: [OM] Re: Focus problem


>
> 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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