Archived posting to the Leica Users Group, 1997/12/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 12:34 AM 12/6/97 EST, you wrote: >I was comparing a current M-50/2 (w. pull-out hood) and a 35/2 ASPH to >early-1970's versions and noted that I couldn't find any setscrews or >retaining-rings on the current versions (although current 90/2 and the new 21 >ASPH do have them evident) except for the ones affixing the rear lensmount. I >remember someone of some authority saying that some of the newer lenses are >held together with cement, and that they tend to come loose with use. In the >dental field we use some phenomenal cements and resin-bonding materials which >withstand extreme forces and a humid environment as well if not better than >mechanical fasteners, but I would like to inquire if any users out there have >experienced problems with newer lenses coming loose? > >Doc > > Doc, My 35 Summicron (version just before the Asph) has a loose front section just in front of the aperture ring. Probably because I rely too much on using the lensshade to bayonet the lens on and off. I'm told that it's a simple matter of re-gluing it and that I should discontinue my bad practices. Oh well... Carl S. "He who makes a beast of himself gets rid of the pain of being a man." Francois Villon.