Archived posting to the Leica Users Group, 1998/05/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have heard two rumors about a new 90mmF2.0 Summicron. One has it the form of an aspherical lens, the other an APO lens. Could the lens be both APO and contain an aspheric lens surface? I'm not wholly knowledgable on lens construction, I just use them. Your comments are most appreciated. Arturo