[Leica] Cleaning Marks

[vick.ko at sympatico.ca (Vick Ko)]

The Tri-Elmar is fine.  As you said, it is almost permanently welded to my
RD1.

So, the lens that I wrote about is a 50mm f1.1 Nikkor internal mount lens.
Very much a collector item lens, and I had been looking for one for a while.


I got it at a Tamarkin auction and it turned out that it was a piece of crap
rated at EX. The front and rear lens surfaces were full of cleaning marks.
And two out of the three internal doublets were de-cemented.  I just
re-cemented the one doublet that I could get access to; I fixed the other
decemented doublet by re-applying blackening paint.   

But the part that really upset me was the description of "a mark on the
front lens".  Well, that mark was a 1/8th inch long gouge.  I doubt that the
lens can be repolished to remove the gouge, but perhaps the cleaning marks
can be removed.

I was extremely disappointed with Tamarkin; as auctioneers of classical
equipment, I would have thought that they would know how to accurately rate
a lens.  

I went out cross-country skiing today.  I haven't done that in a couple
years.  My brain seems to remember that I used to go faster and more
gracefully than what my muscles could do today.  

regards
Vick

-----Original Message-----
From: lug-bounces+vick.ko=sympatico.ca@leica-users.org
[mailto:lug-bounces+vick.ko=sympatico.ca@leica-users.org] On Behalf Of
Howard Cummer
Sent: Sunday, November 25, 2007 7:31 PM
To: lug@leica-users.org
Subject: [Leica] Cleaning Marks

Vic,
Better to send to John VonStelton - I've had two lenses polished and
recoated by him with excellent results.
Cheers
Howard
PS:  How is the Tri?
On 26 Nov 2007, at 7:45 AM, lug-request@leica-users.org wrote:

> Date: Sun, 25 Nov 2007 18:26:29 -0500
> From: "Vick Ko" <vick.ko@sympatico.ca>
> Subject: [Leica] Has anyone here fixed their own cleaning marks on a
>       lens?
> To: "'Internet Directory of Camera Collectors'" <idcc@lists.kjsl.com>,
>       "'Leica Users Group'" <lug@leica-users.org>
> Message-ID: <003401c82fba$9b9847d0$6400a8c0@corp.nortel.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Has anyone here fixed their own cleaning marks on a lens?
>
> For example, is anyone here also an amateur telescope maker?
>
> Is polishing out the cleaning marks hard?  I wouldn't think so, with 
> the proper setup.
>
> Then, what about putting on an anti-reflective coating?  I can't 
> conceive of doing that at home, but, what about a UV-cure spin-coated 
> film?
>
> regards,
> Vick


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