Archived posting to the Leica Users Group, 1998/03/18

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Subject: Re: [Leica] took back G2 and bought M6 0.85 today!
From: Jeff Moore <jbm@instinet.com>
Date: Wed, 18 Mar 1998 12:44:52 -0500
 
At 17 Mar 1998 21:45:05 -0600, Eric Welch <ewelch@ponyexpress.net> wrote:

> No, that is not correct. They are not the same formula.

Really?  We're talking current 50mm Summicrons here, right?  I don't have 
the references before me, but I recall very similar diagrams: 6-in-4, 
symmetrical, flat where cemented.  Where did I go wrong?

Now the 35mm Summicrons, they're *way* different.

 -Jeff M.