Archived posting to the Leica Users Group, 1997/12/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>At 11:39 AM 12/19/97 -0800, you wrote: > >>I think you might point out to Chuck next time that among others, Konica >>produced a 300 mm lens in the 70's that had a flourite element. Like I >>said, the info on the 400 Nikkor is contradictory (this is the first >>400/5.6, before they called any lens 'ED' and started to use the gold band) >>but the Konica lens is well known. I had one for a number of years, and it >>was superb. > >The key words there was "in the 70s." Several manufacturers did at one time >use flourites. I believe some old Nikon lenses used them. I, and Chuck, >were talking about what is being manufactured. Not what WAS being >manufactured. If Canon has a patent _now_, I would think that they had a patent then. You're flipping cause and effect. On second thought, I guess Canon could have had the patent then and licensed it to Konica and others. * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com