Re: [Leica] Summicron 50 mm question

["Bud Cook" <budcook@ibm.net>]

Actually, I never really looked at the lenses side by side.  I just assumed
they were the same.
Bud
- -----Original Message-----
From: Alfred Breull <puma@hannover.sgh-net.de>
To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Date: Thursday, January 29, 1998 3:11 AM
Subject: Re: [Leica] Summicron 50 mm question

>Bud,
>
>Just look at them. In direct comparison size/ heigth is different,
>curvature of the front lens is different, and the reflection/
>fracture of the inner lens elements is different. Additionally,
>the redition is so different, that you see it immediately.
>
>Why do you believe, that both lenses might have an identical
>optical formula?
>
>Alf
>
>----------------------------------------------------------------------
>At 17:28 28.01.1998 -0600, Bud Cook wrote:
>>The Morgan & Morgan Leica Manual, Thirteenth Edition, Second Printing
dated
>>November 1956 discusses the new 7 element Summicron which comes in a
>>collapsible screw mount as well as a new version for the M3 which comes in
a
>>dual range focusing mount in which the lens element can be unscrewed.  The
>>manual shows one diagram for this lens and it appears to be the same as
the
>>one for the Rigid Summicron shown in later literature.
>>
>>I've always believed that the optical formula was identical between my
>>collapsible and Rigid Summicrons.
>
>