Archived posting to the Leica Users Group, 2008/05/08

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Subject: [Leica] Leica R10
From: andersonfe at (ferrel anderson)
Date: Thu May 8 12:37:18 2008

The coverage and performance of current R lenses can be ascertained by 
visiting the Leica web page and accessing the MTF and vignetting graphs.  
The wide angle lenses, other than the perspective control lenses, fall off 
in performance and illumination markedly in the graphs, so I doubt that they 
will perform well at the corners with a larger than 43.26 diameter image 
circle sensor.  The long lenses, however, do cover larger image circles, and 
should perform well.  Jim Lager in his book on Leica lenses, shows some long 
lenses on hasselblad bodies that he says perform well.  Those that I can 
remember off hand are the 135mm f4 Elmar, the 200mm f4 Telyt, and the 280mm 
f4.8 Telyt.

I don't favor the square format, so I am wishing for a rectangular format 
that is not so extreme as the 2/3 ratio.  How about the 4/5 ratio, or a 
ratio equivalent to the current letter size that we use in our ink jet 

Replies: Reply from leicachris at (Chris Williams) ([Leica] Leica R10)