I'm not brave enough to open up a 100/2 - though I have performed such
surgery on a 135/3.5 and 50/1.8.
Thy're both going to John on Monday.
Thanks,
Gary
----- Original Message -----
From: "Jim Brokaw" <jbrokaw@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, April 14, 2002 2:03 AM
Subject: Re: [OM] OM-4T rejects Zuiko 100/2
> on 4/13/02 12:06 PM, Gary Edwards at garyetx@xxxxxxxxx wrote:
>
> > I guess that I hadn't had occasion to use my relatively
recently-acquired
> > Zuiko 100 mm f/2 lens on the black OM-4T - until now. That -4T does not
> > like that lens. Every time the shutter is released, the mirror comes up
> > part way, the viewfinder goes dark, and . . . . nothing else happens.
Until
> > I bump the DOF preview button, then the mirror goes up all the way and
the
> > shutter trips. On occasion, the camera will function properly if the
> > aperture is set to f/2. It fails every time at f/2.8 or smaller.
> >
> > I tried the 100/2 on six other bodies (including an older,
champagne -4T) -
> > no problem, at f/2, f/8, or f/22. I tried every other lens that I have
on
> > the black OM-4T - no problem. That test series included a Zuiko
180/2.8, a
> > Sigma 70-210/2.8, and a Tamron 400/4, all of which have presumably
> > comparable diaphragm mass, etc. The 100/2 does have the stiffest
feeling
> > aperture linkage of all of the lenses I have on hand (16).
> >
> > So, I don't know which unit needs fixing - camera aperture drive or lens
> > diaphragm? It looks like I'll have to send both off to John, unless
someone
> > has an idea of where the problem is.
> >
> > Gary Edwards
> >
> > people, places, flight at http://home.attbi.com/~garyetx/
> >
>
> Didn't somebody else have a problem with the 100/2.0 recently... that
turned
> out to be a slight binding on the aperture linkage. The problem IIRC was
> resolved by removing the lens mount and fiddling within... FWIW I don't
have
> any interaction problems with my 100/2.0, so I don't think its a design
> problem. Since the 4T works with everything else, that points to the
lens...
>
> Wow, two internet acronyms in one message...!
> --
>
> Jim Brokaw
> OM-1's, -2's, -4's, (no -3's yet) and no OM-oney...
>
>
> < This message was delivered via the Olympus Mailing List >
> < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
>
>
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|