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[OM] Re: Classic (or old) Vivitar Lens: Loose rubber grip on focus ring

Subject: [OM] Re: Classic (or old) Vivitar Lens: Loose rubber grip on focus ring - how to repair?
From: "Warren Kato" <wkkato@xxxxxxxxx>
Date: Sat, 3 Nov 2007 17:12:27 -0700
What I did with some lens is that I cut out a row or two of diamonds and
used Pliobond to stick the two ends together as well as stick the [new] seam
to the lens body.  This way the seam had some strength and gluing it down
only in one spot kept the elastic nature of the rubber grip.

Warren


On 11/3/07, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>
> I don't think it would work very well.  Rubber cement is normally
> applied in a very thin layer to both bonding surfaces and allowed to air
> dry before attaching the surfaces under pressure.  It's generally pretty
> easy to simply roll the rubber back on itself, wrap a strip of double
> stick tape around the exposed barrel and then unroll the rubber.
>
> Chuck Norcutt
>
> Johann Thorsson wrote:
> > What about injecting some rubber cement through the rubber grip using a
> > syringe?
> >
> > J
> >
> >
> > ----- Original Message -----
> > From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
> > To: <olympus@xxxxxxxxxx>
> > Sent: Friday, November 02, 2007 17:21
> > Subject: [OM] Re: Classic (or old) Vivitar Lens: Loose rubber grip on
> focus
> > ring - how to repair?
> >
> >
> >> Depends how loose it is.  The simple fix is to roll the rubber sleeve
> >> back on one end and put a ring of thin, double stick tape around the
> >> focus ring and then roll the rubber ring back into place.  Then repeat
> >> on the other end.  That, of course, assumes there's enough elasticity
> >> left in the rubber to stretch for the rolling back.
> >>
> >> If it's so loose that it's really sloppy you could roll it back
> >> completely and then wrap a spacer around the ring also stuck to the
> ring
> >> with double stick tape.  Then replace the ring and repeat the trick
> >> above doing one end at a time.  If it's really, really loose some might
> >> try taking a slice out of the ring with a very sharp razor blade.  If
> >> the rubber has a diamond pattern embossed in it you can cut diagonally
> >> along a groove.  If you remove a complete diamond you can make a fairly
> >> well hidden seam.  Do some trial fitting and then rewrap the rubber
> >> around the focus ring with double stick tape under the seam.
> >>
> >> Chuck Norcutt
> >>
> >> Ali Shah wrote:
> >>> Got a 200mm Vivitar lens. Nice lens, except the rubber
> >>> grip around the focus ring is loose and moves instead
> >>> of turning the ring. How can fix this?
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> >
>
> ==============================================
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