Archived posting to the Leica Users Group, 1998/02/01

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Subject: Re: [Leica] Multicoating
From: Dan Cardish <dcardish@microtec.net>
Date: Sun, 01 Feb 1998 04:04:49 -0500

At 11:56 PM 30-01-98 -0800, you wrote:
>
>No filter available is multicoated like a Leica lens is multicoated. ANY
>filter you can buy WILL give you flare, ghosting, double images, etc. under
>many (seemingly normal) circumstances. Read Leica document #920-083.
>
>Jim

No, ANY filter WILL NOT give you flare, ghosting, double images, etc. UNDER
MANY (SEEMINGLY NORMAL) CIRCUMSTANCES.  I don't care about Leica document
1234-5678.  The original poster wanted to see actual evidence, not your
opinions or some document.  I use UV filter 100% of the time.  I NEVER SEE
ANY EVIDENCE THAT THEY ARE ON MY LENS.  I put them there to protect them.
I don't want to see eny effect of the filter in my pictures.  And after 10
years of using my M6 (and 30 years of using other camera makes), I haven't.
 If a lens such as my 90 tele-elmarit, which is prone to flare, is pointed
into the sun, I will get flare, with or without a filter.  With a lens like
my 75 Summilux, I never see flare, regardless of where I point it.  But
I'll be damned if I'm going to let tree sap, and other environmental shit
cover the surface of my $2000 Summilux, as it periodically does to the $50
filter I have sitting in front of it.

Like the original poster asked, please show me (photographs, not documents)
the flare, double images, ghosting, whatever, caused by UV filters.

Dan C.