That lens lock system is probably the worst engineering Oly ever did. The
lens lock button pushes against a leaf spring (metal). Leaf spring has 2
holes in it. Spring is pushed down over 2 plastic studs inside lens mount
and plastic studs are melted down on top of spring. So spring tension is
always pushing against sides if plastic pins. Then pins break off.
Remove spring, scrape off remaining plastic studs, drill center with 1mm
drill, insert 1.4mm screw with large, thin, flat head.
----------------------------------------------------
John Hermanson www.zuiko.com
mail: omtech@xxxxxxxxx
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743-4714
631-424-2121 Turnaround 5-7 weeks
----------------------------------------------------
----- Original Message -----
From: "Roger Wesson" <roger@xxxxxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Monday, April 05, 2004 3:01 PM
Subject: [OM] Butchering a Zuiko...
>
> Hi everyone,
>
> I may have mentioned my PhD thesis once or twice on list. Well, it's
> finished and submitted now, and if anyone wants to see what a monstrous
> amount of work it was, have a look at
> http://www.world-traveller.org/astro/thesis/Thesis.pdf (4.5Mb file so
> unless you're really interested in how much carbon, nitrogen and oxygen
> dying stars produce you probably don't want to bother!).
>
> So, now I find myself with time on my hands - evenings and weekends are
> mine once again. I'm scanning a backlog of photos and will soon be
> doing a fairly big update on gallery.world-traveller.org, but the other
> thing I want to do is fix up two 135/3.5 lenses I have which have lens
> lock buttons which don't work any more. I searched the archives (great
> to have them - thanks Lars!!) and found info about that being a fairly
> common problem with a simple fix on the 135/2.8, and just wondered if it
> is also simple to sort out with 135/3.5s? Am I likely to be able to
> repair the problem without needing new parts?
>
> Cheers,
> Roger
>
>
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