Archived posting to the Leica Users Group, 2003/03/18

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Subject: Re: [Leica] What do you think of ELMAR 90/4.0?
From: John Collier <jbcollier@shaw.ca>
Date: Tue, 18 Mar 2003 13:17:00 -0700

The early Elmars like yours have four elements in three groups. The 
rear "element"/group is a cemented pair. The 11730 (LTM)/11830(M) 90/4 
produced from 1964 to 1968 had only three elements.

John Collier

On Monday, March 17, 2003, at 08:35 AM, Karen Nakamura wrote:

> p.s. I'm a bit confused about the construction of the lens. The 
> manuals I've read said that the lens should be 4 elements in 3 groups, 
> but I only can count 3 elements. Am I missing an element somewhere? 
> Someone help me: was there ever an Elmar in 3/3 form?

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