Archived posting to the Leica Users Group, 2002/03/20

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Subject: RE: [Leica] Lenses
From: "Frank Filippone" <red735i@earthlink.net>
Date: Wed, 20 Mar 2002 16:18:32 -0800

The color of the very thin MC coating has a direct relationship to the
thickness of that coating, and to the best of my knowledge, nothing else.
DIfferent colors = different thicknesses.

In the "old days" I think the coatings were thicker, and there might have
been some sensibility to the chemical composition of the  coating and its
color.  But not today.

Frank Filippone
red735i@earthlink.net

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