Archived posting to the Leica Users Group, 1998/03/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 12:44 PM 3/18/98 -0500, you wrote: >Really? We're talking current 50mm Summicrons here, right? I don't have >the references before me, but I recall very similar diagrams: 6-in-4, >symmetrical, flat where cemented. Where did I go wrong? Yep, the current 50 Summicron R is quite an old formula. Goes back to '76, and the latest M 50 Summicron formula was created in '79. Rogliatti's book "Leica The First 70 Years" is my source. ========== Eric Welch St. Joseph, MO http://www.ponyexpress.net/~ewelch You'll get what's coming to you ... Unless mailed