Sounds like a weak detent spring. However the detent on the 40mm is
provided by a flat blade spring rather than a coiled spring as on most other
Zuikos. The only solution I can think of would be to bend the blade
slightly in the middle so that it presses more firmly against the detent
ball. Of course you'd have to disassemble the front end of the lens to get
to it -- proceed at your own risk!
----- Original Message -----
From: "andrewelliottgalbally" <andrewelliottgalbally@xxxxxxxxxxxxxxx>
To: "olympus mailing list" <olympus@xxxxxxxxxx>
Sent: Saturday, March 20, 2004 6:24 PM
Subject: [OM] 40mm lens problem
>
> Hello list
>
> I think I have a problem with my 40mm zuiko. Whenever it is mounted on my
OM2sp body the aperture ring tends to rotate to f16 all by itself. The
problem is less pronounced with my other OM bodies but it is still very easy
to accidently knock the lens to a smaller apperture no matter what camera I
am using. Is this a common problem with this lens? If so do any of you other
40mm users know of an easy fix?
>
> Thanks
>
> Andrew
>
> N. Ireland
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