Archived posting to the Leica Users Group, 1998/06/06

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Subject: Re: [Leica] APO
From: Charles Dunlap <cdunlap@es.UCSC.EDU>
Date: Sat, 6 Jun 1998 12:42:51 -0800
 
>Should we be using UV filters to
>improve sharpness? ;-)
>-Mike

The cements used in Leica lenses block UV--a UV filter serves no purpose
other than protection (and an opportunity for reduction in contrast).

- -Charlie