Oops! Step Two -- Remove the lens mount. Turn the focus ring out, so the lens
is set for close focus. There are two guides that keep the
helicoid in line, and one plate that serves as a "cam" to adjust the floating
element as the lens is focused. Make sure the screws for the
two guides are tight -- if not, tighten them.
Step Three (and probably your problem) -- Look closely where the two guides go
into the slots on the side of the body -- along that "ledge"
(just inside the helicoid threads) you'll see four tiny "+" screws (you may
need to turn the focus ring to get to all of them). They have
probably worked loose -- tighten them.
julian_davies@xxxxxxxxxxxxxx wrote:
> I can see this working if the focus ring moves on it's own, but if the front
> barrel moves as well, surely that is wear in the helicoid?
>
> Julian
>
> > from: clintonr@xxxxxxxxxxxxxxxx
> > date: Tue, 24 Sep 2002 18:15:52
> > to: olympus@xxxxxxxxxxxxxxx
> > subject: Re: [OM] 50/3.5 with a clunk
> >
> > Underneath the rubber grip are 4 set screws -- they're probably a little
> > loose. Tighten them evenly, then check focus. Replace the grip and glue
> > with
> > a little bit of contact cement all the way around underneath the grip.
> >
> > Benson Russell wrote:
> >
> > > Hello all, but particularly techies...
> > >
> > > I've just got a silvernose 50/3.5 with mint optics and body (ST£160,
> > > serial
> > > no 105509) BUT...
> > > I've noticed a slight bit of play in the focus ring (0.2mm front to back,
> > > 0.27mm side to side) and consequently the front barrel. Not much, just a
> > > tiny clunk as I move it back and forwards.
> > >
> > > Certainly looks lovely otherwise, any comments? A good copy lens?
> > >
> > > Ben Russell
> > >
> > > Ireland
> > >
> > > < 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 >
> >
>
> < 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 >
|