The original note I was quoting said that some lenses had the glass
itself doped with a rare earth, not just the coating. But the writer
could certainly be wrong about that.
Chuck Norcutt
On 5/4/2011 9:44 AM, Charles Geilfuss wrote:
> Unless I'm missing something I don't believe this UV technique is going to
> work on the cloudy rear element of the OM 65-200 zoom. IIRC the UV technique
> was touted as a fix for the lens element yellowing that occurred in the
> early fast primes that were coated with a rare earth element. The rear
> element fogging of the 65-200 is a different beast.
>
> Charlie
>
> On Wed, May 4, 2011 at 8:54 AM,<NSURIT@xxxxxxx> wrote:
>
>>
>> In a message dated 5/2/2011 2:24:10 P.M. Central Daylight Time,
>> chucknorcutt@xxxxxxxxxxxxxxxx writes:
>>
>> Do you plan to try it? Yes, I know, that means the sun must shine for
>> several days on Long Island. :-)
>>
>>
>>
>>
>>
>> Ok, I've got one with the cloudy element and I also have a strong UV light
>> source (UV light box.) What I don't have for the next couple of weeks is
>> some time and the space to set it up for a test. If it works and if
>> someone is willing to ship their lens to me and pay return postage, I would
>> be
>> happy to zap them. If that happens, I'd want to do them in a batch all at
>> one time. Lets see how it works. Bill Barber
>> --
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>>
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