Archived posting to the Leica Users Group, 2001/06/03

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Subject: [Leica] Movement of Aperture Ring on Summicron-M 90 APO
From: "Sander van Hulsenbeek" <vanhulsenbeek@wxs.nl>
Date: Sun, 3 Jun 2001 10:12:26 +0200

 >I note that the
> aperture ring has a bit more play than my other two lenses (the Summicron
35
> ASPH and the Noctilux).  I'd say that the total play on the ring is a bit
less
> than 1/10 stop, which isn't really significant from a picture-taking
standpoint,
> but it's a bit more than on the other lenses, and I'd like to know if this
is
> typical for this lens.

Some for mine, and it very much looks like it has to do with the mechanical
setup of the lens. "System bedingt" , as the Germans would see. I wouldn't
worry about this. Does'nt show up in my pics anyway!

Sander
Amsterdam
Holland