Curtain positions are commonly reset without taking the shutter apart but
it's not for the faint hearted. The curtains are spring loaded and if done
incorrectly, everything can "unwind."
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John Hermanson www.zuiko.com
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----- Original Message -----
From: "Jim Brokaw" <jbrokaw@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Friday, April 05, 2002 3:28 PM
Subject: Re: [OM] slide question
> on 4/5/02 6:42 AM, clintonr@xxxxxxxxxxxxxxxx at clintonr@xxxxxxxxxxxxxxxx
> wrote:
>
> > OM-2s shutters will sometimes "jump timing", resulting in "capping", as
> > you described.
> >
> > To check for proper curtain timing, open the back and wind the shutter
> > half-way, so that the metal bar is approx. centered in the focal
> > aperture. Gently touch the cloth to the left of the bar and you should
> > be able to feel the metal bar of the other curtain behind it -- if it's
> > in the proper location, it should be positioned no more than 1 to 1/2
> > bar width to the left of the exposed bar. In other words, when the
> > shutter is wound half-way, the curtain bars will overlap no more than 1
> > to 1/2 the bar's width. BTW, this check works on almost all OM's.
> >
> > Chances are you'll find that the bar underneath is 2-3 bar widths to the
> > left of the exposed bar. Usually the only solution is to re-time the
> > curtains -- simply adjusting travel time rarely solves it unless it's
> > only jumped one tooth. The front casting will have to be removed, but
> > if you know how you can reposition the curtains without removing the
> > shutter itself (it's only the 2nd curtain that slips, _don't_ disturb
> > the timing of the first curtain!).
> >
> >
> > Jim Brokaw wrote:
> >>
> >> adjust the speed of the shutter curtains to cure this problem. I have
an
> >> OM-2s that does the same thing, a little worse. Pictures are fine up to
> >> about 1/125th, but above that they start to 'fade to black' at the far
end
> >> of the shutter travel.
> >> --
> >
>
> Well, its nice to know how to check for the problem, but it doesn't sound
> like something I'd try to fix myself. I have that body set aside for CLA
> when my employment situation improves... I have about 3 to get CLA'd. Do
you
> offer a quantity discount...?
> --
>
> Jim Brokaw
> OM-1's, -2's, -4's, (no -3's yet) and no OM-oney...
>
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