Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1.chuqui 4/7/84; site voder.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!houxm!vax135!cornell!uw-beaver!tektronix!hplabs!nsc!voder!gino
From: gino@voder.UUCP (Gino Bloch)
Newsgroups: net.rec.photo
Subject: Re: don't use filters to protect lens
Message-ID: <337@voder.UUCP>
Date: Fri, 31-Aug-84 17:16:48 EDT
Article-I.D.: voder.337
Posted: Fri Aug 31 17:16:48 1984
Date-Received: Mon, 3-Sep-84 20:04:32 EDT
References: <3466@decwrl.UUCP>
Organization: National Semiconductor, Santa Clara
Lines: 16

>>                But on a filter that is going to have a 100% to
>> 400% change in exposure anyway, saving another 8% by coating
>> is pretty insignificant.
As is hinted at in the quotes from E. Leitz later in the article,
the main problem with reflections (these days) is light ending
up in the wrong place, as in scattered light or flare, not lost
light.

>>                Clearly a non-flat filter will have a greater
>> detrimental effect on a long focus lens than on a shorter lens.
And a flat filter is worse for wide-angel lenses.  Again refer
to the quoted material.  (I made a typo above, but I like it so
much that I won't correct it).

>> First I want to apologize in advance for being a Leica fanatic.
NEVER apologize for that!