Archived posting to the Leica Users Group, 1997/09/05

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Subject: Re: Lens Article-Thanks
From: jsanz@lamar.colostate.edu (Dr. Juan F. Sanz Cervera)
Date: Fri, 5 Sep 1997 08:31:29 -0600 (MDT)

>From: "Doug Williams (R)" <dwilli19@ford.com>
>Just
>purchased a DR Summicron!  Should arrive today!  At first, was not sure which
>Summicron to get, the newest design or the older DR Summicron.  From what I
>have
>been reading, the newest one is tack sharp-one of the best.  Most people seem
>to
>prefer the older Dr/rigid Summicron in spite of the reputation of the newer
>one.
>I was wonder if you have any more info, or could point me in the direction of
>any more info regarding the DR Summicron?  I sure would be grateful.  Thanks!!

I have both a rigid 50 Summicron from around 1960 and newer (1983) Canadian
version. The rigid Summicron has the same optics as the DR, and I have to
say that I prefer it for B&W work. It has less contrast than the newer lens
(which I believe is the current optical design), but that's usually not a
problem in B&W if you know how to control contrast through development
time/developer concentration/temperature changes. For color work, and
especially for those who love snappy, saturated colors, I believe that the
newer versions work much better. I have to say exactly the same about the
35 Summicrons. I have one form around 1959 (first version) and another of
current production, and again, and for the same reasons as above, I like
better the older version for B&W work.

Regards,

        - Juan


    Dr. Juan F. Sanz Cervera
    Visiting Professor of Chemistry at Colorado State University
    Fort Collins, Colorado, USA
    jsanz@lamar.colostate.edu        jsanz@uv.es
    http://www.uv.es/~jsanz/photo1.htm   (on-line B&W photo gallerie)