Archived posting to the Leica Users Group, 1998/12/09
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Many Thanks to Bill Butz,
"Hi Jim
You remeber right. p 67, Gunter Osterloh, Leica M, the advanced school
of Photography.
Bill"
At 08:35 AM 12/9/98 -0800, I wrote:
>Frank,
>
>Why I speak of the front and rear outside surfaces and coating, is because
>I have a Leica document (it's here somewhere) that said that when they
>developed some of their special glass, they did not coat the internal lens
>surfaces, they only coated the external (front and rear) surfaces. They
>said that the glass had such high transmittance, that no coating would help.
>
>This is in a fairly old document, and I cannot, at this very moment, come
>up with it. But I know it's here in my library and would be happy to send
>along the reference when I do come across it again.
>
>Jim
>