Archived posting to the Leica Users Group, 1996/06/19

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: Re: 50mm Summicron
From: Marc James Small <>
Date: Wed, 19 Jun 1996 09:25:09 -0400


It isn't so much that Leica now makes lenses which are "inferior" to former
designs.  It is more that Leica now makes lenses which are supposed to
produce adequate images but cost less to manufacture.  It's not quite the
same thing.  And some Leica M designs -- the two aspherical 1.4/35 Summilux
designs and the current 2.8/90 Elmarit -- are improvements over past

But the two sticklers in the bunch are the 2/35 and 2/50 Summicrons.  In
both cases, a fair number of users seem to prefer the earlier designs -- the
first eight-element design for the 35mm and the rigid or NF design for the 50mm.

The Japanese tests come from a publication entitled CAMERA REVIEW:  ALL
ABOUT HISTORICAL CAMERAS, issue 24.  Most of this is in Japanese -- which I
do not speak! -- but I have a brief precis in English with a few of the
charts deciphered.  Simply put, the results showed:

First rigid design (1959)                       280 center resolution
181 surface resolution
second (1978)                                         180
current (1981)                                          180

There are a slew more charts but the translation of them is a task!

Further information can be had from my source, Mr Joel Tlumak, publisher of
RFinder Magazine, at -- I just suggested to Joel that he should
subscribe to LUG.

Marc  FAX:  +540/343-7315
Cha robh bas fir gun ghras fir!

Replies: Reply from Jan Decher <> (2.8/50mm collapsibl)