Archived posting to the Leica Users Group, 2008/05/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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 printers?