Archived posting to the Leica Users Group, 2004/11/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On 11/7/04 10:23 PM, "Frank Dernie" <Frank.Dernie@btinternet.com> typed: > The WA aspherics have one aspheric surface. This surface is pressed > using a technology developed by Hoya and Leica according to Erwin. It > is generally the first surface after the aperture. I don't know which > surface is aspheric in the new 50 or 90AA. The tri-elmar has more than > one aspheric surface. Just what I have read. > Frank > I read all that stuff too Frank but time fly's that was at least 5 years ago I think. I've heard I think from the German Leica guys and others that they'd gone away from that. Why they did so I didn't hear. Troubles with the machine? Mark Rabiner Photography Portland Oregon http://rabinergroup.com/