On Tuesday, April 12, 2005, at 01:44 AM, Ruben wrote: > I am getting more and more happy with my own tessar on the automat ! > It gives my Leicas a hard run to the motifs! Of course the larger negative size is part of the cause for this - but yes, from what I understand, the Tessar, especially when stopped down, is extremely sharp. > I got another automat the 1956-7 with the coupling of EV values - the > first model - it has a tessar to but not the word "opton" as my > 1951-1953 automat - are they the same lenses anyway ? Yes. The "Opton" name was adopted for a while by Zeiss in West Germany after the War to differentiate itself from its East German counterpart, which had fallen into Soviet hands. Ardeshir <http://homepage.mac.com/ardeshir>