interesting, I'd like that to fix my 8mm FE.
___________________________________
John Hermanson | CPS, Inc.
21 South Ln., Huntington NY 11743
631-424-2121 | www.zuiko.com
Olympus OM Service since 1977
Gallery: www.zuiko.com/album/index.html
On 5/1/2011 12:15 PM, Chuck Norcutt wrote:
> I have perhaps one of the few living 65-200/4s that has not been
> affected by the dreaded cloudy element disease. I've often wondered
> what was the cause and never seen anything regarding another type of
> lens that sounded like it might be the same malady... until today.
>
> I was just reading the following note on the Kiron Klub list on Yahoo.
> It certainly sounds similar. Maybe someone with a cloudy 65-200 will
> give the recommended solution a try. Your guess is as good as mine
> about the veracity of the solution.
>
> Chuck Norcutt
>
> -----------------------------------------------------
> > Has anyone experienced a Kiron 28-85 varifocal with a hazy or cloudy
> >element near the rear of the lens? If so, did the serial number start
> >"054". Yes, I have one.
> > Thanks for your attention. Mel
> >
>
> There is a glass that is doped with a rare earth that will cloud up over
> time. Don't remember the details except it is a solid state effect
> caused by electron getting bump up into a quantum level. Like in a laser
> only they become trapped.
>
> The cure is for the glass to be exposed to strong UV. Might want to
> leave it outside on a sunny day or next to a UV lamp and see what
> happens. Depending on the strength of the UV source it might take up to
> 24 hours exposure
> ------------------------------------------------------
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