Archived posting to the Leica Users Group, 2000/07/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]it is worth noting that if a bubble even a gouge is not in a rectangle in the lens correspoonding to the 1x1/2 inch film it is photographically harmless. remmber the first 2lmm's taken from their rf buddies for the leica sl, nikon f,contarex: they chopped off the whole top of the 4 element rear componet to fit under the mirror. The lenses were unaffected and in general had linear diaghrams instead of the original shrinking space between f-stops. > From: eve <dkhong@pacific.net.sg> > Reply-To: leica-users@mejac.palo-alto.ca.us > Date: Mon, 03 Jul 2000 06:23:10 +0000 > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] impurities in lens > > I suppose when all this discourse is over, it may be necessary to provide > information on the degree of bubbling in the lenses for sale, when > describing glass quality. > > For e.g. > > Friday FS: 90 Tele-Elbublit M. Mint barrel. Glass mint except for two small > bubbles at periphery and center respectively. $xxx > > WTB: 50 Bubblelux. First version. Good glass expected with bubble count not > exceeding five. Larges bubbles exceeding 3% of barrel diameter not acceptable. > > Dan K. > --------------------------------------------------------------- > What Me Worry? > =============================================================== > > > >