my prblem is that the rubber ring is already brittle. have done all these
things already and they did work for a while. this is practically a 20 year
old lens, my brother in law got it in late '78 brand new.so i just have to
replace it now, if that were possible.
francis
Mikael von Numers wrote:
> > I have a suggestion other than just adding glue to fix the rubber
> > focusing ring to the lens body. First, remove the rubber ring, cut it
> > into one stright piece carefully by a sharp cutter. Put it back to the
> > lens, stretch it a little bit and measure the extra rubber, then cut it
> > (try to make both cutting edges parallel). Adhere the two ends together
> > by a quick set adhesive which containing cyanoacrylate, such as the Aron
> > Alpha. The glue dry within a few seconds and it make very strong bonding
> > with rubber.
> >
> > Place a piece of double sided adhesive tape on the lens and re-assembly
> > the rubber ring with the join face downward. I have done this for my
> > 35/F2 and it works well.
> >
> > C.H.Ling
>
> Hi C.H. Ling
>
> This is almost exactly the same method that i have used for my 28F2
> and 100F2.8 Zuikos. It is probably the best method if the rubber
> ring has stretched very much. The adhesive tape is not needed if you
> make the rubber ring tight enough. The join is practically invisible
> if you cut and glue carefully.
>
> Mikael von Numers
>
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