Archived posting to the Leica Users Group, 2001/05/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 04:09 PM 5/12/01 +0800, apbbeijing wrote: >> Contains APO glass in some of its elements. > >What is APO glass? > >Rgds > >Adrian In one of my brochures from that era, Leica says that the 350 contains elements with "specialty" glass, or some such words and not remembering the exact wording or what they called the glass, I used the term APO, which is a specialty glass and since my 350 seems to be exquisitely sharp, I have to believe that it is very well corrected, at least in two of the three primary wavelengths. Jim