Archived posting to the Leica Users Group, 2000/08/18

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Subject: Re: Vs: [Leica] M-Rokkor story
From: "Henning J. Wulff" <henningw@archiphoto.com>
Date: Fri, 18 Aug 2000 11:46:44 -0700

At 7:04 PM +0200 8/18/00, Raimo Korhonen wrote:
>Do you believe in all legends? Multicoating was definitely jointly
>productionised by Zeiss and Pentax and an unknown American company called
>Optical Coating Laboratory Inc. - after some years Leitz obtained a
>licence. The idea itself is about 100 years old.
>All the best!
>Raimo
>photos at http://personal.inet.fi/private/raimo.korhonen

As Erwin wrote, Leica started coating some lenses with up to 3 layers in
1957. One of the first lenses to have this 'multi' layer coating was the
35/1.4 Summilux. In the Pentax PR way of thinking, this was not
'multi-coating' and especially not 'Super Multi-Coating'. Various
companies, definitely including the American company mentioned and Zeiss
were working on multi-layer coatings, but just as definitely Leica had
multi-layer coatings in production before Pentax did.

   *            Henning J. Wulff
  /|\      Wulff Photography & Design
 /###\   mailto:henningw@archiphoto.com
 |[ ]|     http://www.archiphoto.com

Replies: Reply from "Richard Ogden" <rj.ogden@virgin.net> ([Leica] 40mm Summicron-C Coating)