Archived posting to the Leica Users Group, 1996/02/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Marc James Small wrote: > > Max Berek began the design philosophy of retaining some residual aberration But which aberration? And Max Berek, we're talking 1914-20, or somwhere in there. And it's not so much retaining, as the way compromises were made. No lens is free of aberrations, none. And every lens is a balancing act between aberrations. And a more up-to-date read on Leica lens design philosophy (though now a bit out of date due to late changes in philosophy for interpreting test results) is "Leica Lens Practice." It mentions Leica's philosophy in the last 40 or so years, especially the last two decades (since the 180 f/3.4 Apo Telyt came out). -- Eric Welch Grants Pass, OR