Archived posting to the Leica Users Group, 2004/12/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Dec 7, 2004, at 12:39 PM, Michiel Fokkema wrote: > Ruben wrote: >> describing older Leica lenses I sometimes see the word Rigid >> mentioned - Looking the word up in the dictionary only confuses me - >> is it just that it is not a collapsable lens or ??? The term usually refers to the second optical version of the 2/50 Summicron. The 'rigid' and DR (dual range) share the same optical formula, except the DR can focus below 1 meter using a set of corrective goggles. feli ________________________________________________________ feli2@earthlink.net 2 + 2 = 4 www.elanphotos.com