[LargeFormat] multi coating

[Les Newcomer]

Were on the same page  Ken.  10 elements per lens, or 5 elements per
cell x2 cells.

That's a ridiculous amount of work to coat two surfaces, so how could
Clive have a coated TR?

You answered it right after I sent it--they did it before the first assembly.

Ken Hough wrote:
> 
> Les, Read this slowly and with your glasses,
> On a Dagor, Protar, T-R you have to didassemble the lens into its 10
> elements. THEN you coat the front and Rear element of each cell. Then re
> assemble. Coating is a HOT process and will melt the cement.
> Ken
> 
> From:                   Les Newcomer <lnphoto@twmi.rr.com>
> To:                     largeformat@f32.net
> Subject:                Re: [LargeFormat] multi coating
> Send reply to:          largeformat@f32.net
> Date sent:              Sun, 02 Dec 2001 20:01:40 -0800
> 
> [ Double-click this line for list subscription options ]
> 
> This is the confusing part.
> 
> I hear/read:
> 
> You can only do single elements, or recement multiples because  the
> process ruins the cement.
> 
> The price is too high, you can't do any thing.
> 
> So Clive shows up with a TR that has FIVE elements in a cell and it's coated.
> 
> So somebody dissassembled and then recemented and recolated two five
> element cells just to get a single coating?
> 
> Les
> 
> Clive Warren wrote:
> >
> > At 10:33 pm -0600 1/12/01, Michael Briggs wrote:
> > >
> > >I have heard that decades ago, when single-coating was newly
> > >introduced, it was fairly common to have existing lenses coated.
> >
> > That might explain why I have a 4x5 Turner Reich convertible that has
> > front and rear element single coating.  It is a fairly light blue
> > coating, suffering slightly on the front element from some
> > oxidisation but the rear is perfect.
> >
> > This is the only Turner Reich that I have seen with coating - maybe
> > Ken got to it :-)
> >
> > Cheers,
> >          Clive
> >
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>         ******Ken Hough Photographic Repair******
>          Specializing in Deardorff Refinishing
>           Lens Recementing and Shutter repair
>           Contribitor to McKeowns Price Guide
>                    Deardorff Section
>            Custom machined Photographic items
>            Text Contents Copyright 1999 KHPR
>           http://deardorffcameras.0catch.com/
>                    Est. 1980
> 
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