Archived posting to the Leica Users Group, 1998/01/25

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Subject: Re: [Leica] Summilux-m 35mm f1.4 asph & uv filter
From: "usinet.srlond" <srlondon@ibm.net>
Date: Mon, 26 Jan 1998 01:05:04 -0500
 
>
>I am using the 35mm summilux-m f1.4 asph with the Leica uv (13004) filter. 
>Someone told me
>that I was loosing the sharpnes of the lens with that filter. Any comments 
>from users?
>I always beleived good quality uv filter did not altered the quality of 
>the lens.
>

I never thought that I saw any noticable loss of quality due to the 
presence of a multi-coated filter on my 35mm Summicron-M (latest) until I 
went out shooting with TMAX 3200 under the street lights on a foggy night 
last week.  But I noticed reflections of the lights in some frames even 
though I used a lens hood.  Would they have been there if I didn't have 
the filter on?  Maybe, or maybe not.  But I'm taking filter off the lens...