Archived posting to the Leica Users Group, 1999/01/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 0:26 PM +0100 99.1.25, Alan Ball wrote: >My question: is the reason for maintaining production of very expensive >ground aspherical lenses due to the size of the glass elements involved >? Would that explain why there is no R aspherical lens up to now ? I read so somewhere. If I remember correctly, the maximum diameter for glass-mold aspherical lenses is 24 mm or something. BTW, is there something special with the design and/or glass of 35 mm Summilux-R (which has no aspherical element). Zeiss, Minolta (and others?) have one. Mikiro Mori Strasbourg, Europe ****************** Visit my gallery at http://members.tripod.com/arbos3/cigogne/index.html