As I said, that's very unusual. Perhaps there are dimples in the cam
from some impact? That's much more likely to happen in an IS-1/2/3 or
Superzoom 300/330 type camera though, but I guess it could happen here.
Or maybe some of the screws to the floating element frames are loose, so
that they don't travel within the barrel smoothly, or the barrel is
slightly out of round and scraping. It's a challenge, that's for
sure....
Tom Scales wrote:
>
> OK, here's the deal. It IS focusing as I turn the ring. I was wrong about
> that. It's just 'catching' and that make it somewhat 'jerky'.
>
> Does that make sense?
>
> So, what does it take to fix this?
>
> Tom
>
> > At 09:52 AM 3/15/2002 -0600, Clint wrote:
> > >Sorry for jumping in late here, but this is a 180mm f/2.0? Looking at
> the
> > >parts pages, I see that the distance ring is really a cam -- it would
> really
> > >be unusual for it to be able to turn without changing _something_.
> >
> > Yes, that was why my question to Tom. I have a 180/2 that developed the
> > slipping, but it still focuses while it "feels" like its slipping. Tom,
> > check again.
> >
> > >I've only worked on a few, but I've made some notes on disassembly -- if
> > >you'd like I'll pass them on.
> >
> > That would be most generous. I even purchased some special grease
> > for this purpose, but am reluctant to go in blind.
> >
> > Wayne
>
> < 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 >
|