Archived posting to the Leica Users Group, 2005/09/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Damn, I forgot that smiley again ;-) > From: Philippe Orlent <philippe.orlent@pandora.be> > Reply-To: Leica Users Group <lug@leica-users.org> > Date: Thu, 01 Sep 2005 22:23:10 +0200 > To: Leica Users Group <lug@leica-users.org> > Subject: Re: [Leica] Schneideritis > > The typical white spots in some Schneider lenses (commonly known as > Schneideritis) are pretty harmless to the glass and absolutely not the same > as acid markings from fungus. Just send it for a CLA and the lens will > return fine. The exact origin of the spots remained a big question until > recently. It seems that one of the workers of the assembly line of certain > Schneider lenses just had a severe case of dandruft. This combined with an > oily substance he put in his hair called brillantine made the hair > particles > invisible in the lens during quality control before leaving the factory > (due > to refraction of light). It is only after a number of years and after a > chemical reaction following on temperatures above 45,7? centigrade, that > these white spots become visible. Visible but harmless. > At least that's what I've heard. > > >> From: David Lee <leirex@sbcglobal.net> >> Reply-To: Leica Users Group <lug@leica-users.org> >> Date: Thu, 1 Sep 2005 13:07:16 -0700 (PDT) >> To: Leica Users Group <lug@leica-users.org> >> Subject: [Leica] Schneideritis >> >> Hello, >> >> Can anyone educate me on Schneideritis? What is it and what effect >> does it >> have on optical performance? >> >> Thanks, >> David >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >