[LargeFormat] wollensak lens color coded dots

[Edward Meyers]

I have an orange dot Optar 135mm f/4.5 on my speed Graphic. Ed

On Fri, 5 Dec 2003, Richard Knoppow wrote:

>
> ----- Original Message -----
> From: "LNphoto" <LNphoto@twmi.rr.com>
> To: "f32" <largeformat@f32.net>
> Sent: Friday, December 05, 2003 6:34 PM
> Subject: [LargeFormat] wollensak lens color coded dots
>
>
> > Okay  who can tell me what the dots mean on coated Wolley
> lenses.   One
> > dot is yellow, I think one is either red or blue.  Some
> lenses have two
> > dots.  Does this mean Wolley was "multi-coating" lenses 20
> years before
> > the Japanese "invented" the process?
> >
> > Les
> >
> >
>   This is one of the puzzles I've been trying to find an
> answer to for a long time. Similar dots appear on post-war
> Bausch & Lomb lenses.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@ix.netcom.com
>
>
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