Archived posting to the Leica Users Group, 1998/08/23

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Subject: [Leica] 50mm lens evaluations
From: "Thomas J. Donovan" <75674.3465@compuserve.com>
Date: Sun, 23 Aug 1998 16:54:23 -0400
 
Erwin Puts,

First & foremost; great to have you back on the LUG ;-)!

>>The MTF graphs as delivered by Zeiss & Leica<< 
>>are very informative......I will post a document on<<
                     >> this topic some day<<

Looking forward to that explanation as well!


>>I do conduct tests at several distances ( 1 meter<<
>>3 meters, 5 meters, & 10 meters or infinity), .........<<
>>now the five lenses mentioned above have different<<
                 >>characteristics in this respect<<

I'm really looking forward to your next posting regarding 
the five 50s & their performances at various distances. 
In particular, I'm curious how the new r-50 f1.4 compares
in the 3-8 meter range at f1.4 thru f5.6; contrast & the
20 lpm curve.....center & zonal.

Thanks,
Tom D.