Archived posting to the Leica Users Group, 1998/03/21

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Subject: Re: [Leica] Berek and the Leica Glow
From: Joe Berenbaum <joe-b@dircon.co.uk>
Date: Sat, 21 Mar 1998 04:33:02

At 16:53 20/03/98 -0500, you wrote:
>At 01:01 PM 3/20/98 -0800, Don Bledsoe wrote:
>>I can't help but
>>wonder how he "tweaked his design to exaggerated the softness of the
>>out-of-focus image?"  Exactly how did he go about consciously doing
>>this?  Did he design for excessive coma? Astigmatism? Spherical
>>aberration?  
>
>I had understood that he increased the spherical aberration, but Eric Welch
>contested this several years back.  I'd suggest that you pick up an LTM
>camera and shoot a roll with an early Elmar and do the same with a CZJ
>Tessar.  Print the pictures.  The results are rather startling.
>Marc

Marc- I don't have an early Elmar available, but I find this seriously
fascinating- could you possibly try to describe this early Elmar/CZJ Tessar
comparison in words? Are the results similar, identical, or different?

Joe Berenbaum