Archived posting to the Leica Users Group, 2001/12/24

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Subject: Re: [Leica] Expensive glass.....
From: SthRosner@aol.com
Date: Mon, 24 Dec 2001 10:45:48 EST

In a message dated 12/24/01 6:53:24 AM Eastern Standard Time, 
bachchaconne@my-deja.com writes:

> The Elcan 2/50 was a simplified version of the 'Cron. 

No. the Elcan 2/50 is a four-element lens and would almost certainly be an 
updated Elmar/Tessar type triplet with the rear two elements cemented; the 
contemporary 50/2 Summicron was a Gauss design, either the DR/Rigid 7-element 
or 11817, the first 6-element lens. See both Lager, Rogliatti and Leitz 
sources. Compactness appears to be the reason the U.S. Government 
commissioned the Elcan.

Seth     LaK 9 
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