Archived posting to the Leica Users Group, 1998/01/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>Dave, >Increase your version number by one, ie the current optical design is >v 4, since the original collapsible and firest rigid chrome lenses are >distinct >optical designs.... Erwin wrote: >This statement has been made several times and has never been proved. Th= e >original Leica brochure from 1954, describing the introduction of the >Summicron, including its optical properties, show the identical design f= or >both versions. My own findings support the conclusion that the collapsible, >the rigid and the DR are optically identical. Unless somebody gives real= ly >factual and conclusive evidence to the contrary, I would prefer to state= >that there were inly three designs and the current one is number 3 and n= ot >number 4. Erwin, I will try, this evening, to find the article in Shutterbug asserting tha= t fact. (the original collapsible and first rigid chrome lenses are distinct optical designs) BTW the front lens of the collapsible 50 is also much more prone to scrat= ch than the following 50's. Lucien BELGIUM