Archived posting to the Leica Users Group, 2006/07/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>the implication is that they are non retrofocal true wide >angle designs with glass extending right back to the film plane or darned >close to it as real wide angles will do The block diagrams show and this was backed up by seeing the lenses, that they are all at least partial retrofocus. Those names, unfortunately, are just names. They've almost all been used on lenses of different designs at one time or another, by the same manufacturers, Biogon and Distagon included. Tessar too. Marty -- ___________________________________________________ Play 100s of games for FREE! http://games.mail.com/