Archived posting to the Leica Users Group, 2001/06/21

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Subject: [Leica] Re: Early Summaron eyes
From: LRZeitlin@aol.com
Date: Thu, 21 Jun 2001 10:12:06 EDT

In a message dated 6/21/01 7:08:50 AM, 
owner-leica-users@mejac.palo-alto.ca.us writes:

<< I've also seen an early 35/2.8 Summaron with removable <eyes>. That would 
be 
1958. I know that without the <eyes> you'll be looking at the 50mm frame. And 
you'll be getting a very different and likely less accurate viewfinder image. 
My guess is that Leitz had not developed the processes for manufacturing the 
early lenses with <eyes> integrally cast with the lens mount and that the 
removable feature was simply the first design created to enable the lens to 
be used on an M3 without separate 35mm viewfinder.
 >>

I have one of those lenses fitted to my very early model M3. I always thought 
that Leitz had anticipated making the M2 and other M series cameras with less 
magnifiction in the finder. My naieve assumption was that Leitz designed the 
Summaron so that it would be adaptable to other M series cameras. I guess I 
was wrong. Just goes to show that you can't overestimate the foresight of 
Leica engineers. Anyway, when I use the Summaron on my later M cameras, I 
simply pop off the eyes.

Larry Zeitlin