Archived posting to the Leica Users Group, 1999/05/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Pete Your basic point is perfectly correct. Nonetheless, the use of mathematical calculations at both Zeiss and Leitz in the 1870's was the first time a manufacturer of such lenses had used such to design production lenses. Petzval and Wollaston operated on their own and looked to others to produce their designs. Marc msmall@roanoke.infi.net FAX: +540/343-7315 Cha robh bas fir gun ghras fir!