John,
Thanks for the info. Both on the "correct" behavior of a zoom - I didn't
know that, actually - and for a pointer on how to fix it. I'll have to
look at / try that. Any risk of breaking anything if I try to do it
myself?
Thanks again.
--thomas
On Wed, 21 Aug 2002, John Hermanson wrote:
> There is an adjustment under the zoom rubber to compensate for zoom focus
> shift (don't forget zooms are supposed to hold focus when zooming BACK from
> long focal length to short, not zooming OUT).
> _________________________________
> John Hermanson www.zuiko.com
> Camtech, Olympus Sales & Service since 1977
> 21 South Lane, Huntington NY 11743-4714
> 631-424-2121 For Free Olympus manuals,
> please call 1-800-221-3000
> _________________________________
> ----- Original Message -----
> From: "Winsor Crosby" <wincros@xxxxxxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Sent: Wednesday, August 21, 2002 4:36 PM
> Subject: Re: [OM] 28-48mm...focusing?
>
>
> >On Wed, 21 Aug 2002 Pschings@xxxxxxx wrote:
> >
> >> In a message dated Wed, 21 Aug 2002 15:48:31 +0200 (CEST),
> >>T.Clausen@xxxxxxxxxxxx writes:
> >>
> >> > Got my hands on a Zuiko 28-48, which is in excellent condition. One
> thing
> >> > I notice, though, is that the focus does not stay consistent
> throughout
> >> > the zoom range. I.e. if I focus at the 28mm setting, then zoom to
> 48mm,
> >> > the focus changes. (And, of course,the same happens if I
> >> > focus at 48mm and
> >> > zoom to 28...).
> >> >
> >> > Is this normal for this lens?
> >>
> >> I don't believe it is. Of course you have me wondering now, and I'll
> >> have to check mine when I get home tonight. If you can live with it as
> >> is I;d just leave it. It shouldn't affect results, just handling. A CLA
> >> would probably fix it.
> >>
> >
> >Let me know your findings, ok? I've been looking around on the www, and it
> >seems that there are some reports similar to what I see. Yet nothing
> >authoritative....so I'd appreciate any clues :)
> >
> >--
> >
>
>
>
>
> < 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 >
>
--
-------------------------------------------
Thomas Heide Clausen
Civilingeniør i Datateknik (cand.polyt)
M.Sc in Computer Engineering
E-Mail: T.Clausen@xxxxxxxxxxxx
WWW: http://www.cs.auc.dk/~voop
-------------------------------------------
< 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 >
|