Archived posting to the Leica Users Group, 2000/02/22

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Subject: Re: [Leica] a simple request
From: Gabriele Müller <hepac@bluewin.ch>
Date: Wed, 23 Feb 2000 08:36:03 +0100

<<p.s. a quick leica question: could a tiny scratch on the inner glass
surface of a filter (an a36 orange clamp-on filter to be used on an 3.5
elmar 50) effect picture quality? the one i just bought on ebay - announced
with "perfect" glass - has a tiny scratch and i'm wondering if i should
send it back or just live with it.>>

Every scratch changes the refraction of the light and this is naturally not
wished for optical instruments. I f sellers told the glass is 100% perfect,
it must be!
I would send it back!

Wish you all the best and welcome back again!

Gabriele