Disassembly is straight forward (from the front). Problem may just be in
mount rings. Remove rear mount and disassemble coupling rings built into
mount. Clean with a degreaser and rebuild. problem is most likely NOT in
diaphragm mechanism.
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington, NY 11743
631-424-2121 | omtech@xxxxxxxxx
www.zuiko.com
Factory Trained OM Service since 1977
__________________________________
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxx>
To: "Olympus mail list" <olympus@xxxxxxxxxx>
Sent: Wednesday, October 05, 2005 1:10 PM
Subject: [OM] 28 2.8 woes
> I've had a 28/2.8 in my lens stable for eons. I think I aquired it as
> part of a body purchase and I'm not sure I've ever even used it. I
> normally use a 28-70 or 28-105 zoom if I don't need something even wider
> but the other day I encountered a situation where I needed exactly 28mm
> and I needed as much speed as I could get. I figured the 28 2.8 would
> produce a better result at 2.8 than either of the zooms so I hauled it
> out of its hiding place and, as always, gave the diaphragm lever a
> little flick to see that all was well.
>
> Much to my surprise the diaphragm lever didn't flick. It came slowly
> sliding back to its open position.
>
> Obviously, it was feeling neglected and is putting up a fit in order to
> get a tender, loving CLA. I have the parts diagram from Mark which is a
> good start. Anything unusual I should know about this lens before I
> open it up for cleaning. Stuff with thread lock, things that have
> reverse threads, etc., etc.
>
> Thanks,
> Chuck Norcutt
>
>
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