Archived posting to the Leica Users Group, 2000/04/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 08:46 PM 4/13/00 +0100, Joe B. wrote: > >I find this confusing- I thought there were two optical formulations for >the 50 Summilux M mount- and this is what Erwin says on his site; > >Joe B. > Two formulas. One before 1961 and one 1961 and after. Jim