Archived posting to the Leica Users Group, 1998/03/26

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Subject: Re: [Leica] At what altitudes is it adviseable to use an UV filter?
From: Jim Brick <jim@brick.org>
Date: Thu, 26 Mar 1998 08:08:58 -0800
 
Last paragraph, page 55, Leitz document #920 083

"Leica lenses from 1965 onward absorb UV through the use of certain types
of glass and above all through a certain method of cementing the lenses. A
UV filter is unnecessary. Even at high altitudes, the UV filter has no
effect."

Jim



At 02:43 PM 3/27/98 +0100, you wrote:
>I have a question - is there a simple rule - like a specific altitude -
>telling you when one should use an UV filter with Leica glass for optimum
>results? Also, at high altitudes, I would want to use a brownish filter
>(Like KR3 or KR6) anyway to deal with the blue cast - would such a filter
>also deal with the UV?
>
>Milos
>