Archived posting to the Leica Users Group, 2005/06/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I take exception to the remarks below. I have been quite successful in the dis-assembly and cleaning of several Leica brand RFDR lenses, and I have sent off the front element of several for polish and recoating, and then reassembled myself and they work to perfection. It all depends on how handy you are with specialized tools such as spanner wrenches and other items you can readily order from Micro-Tools. If you take your time, and are meticulous you can achieve good results yourself. Different Leica lenses have different optical designs and methods of assembly. The 50mm summicron has an air-spaced front element, which makes polishing and recoating relatively easy from a techincal standpoint. The Summarit may have a cemented pair as the front element group and this makes it more difficult to get a polish and recoat, but should not make it more difficult to disassemble. Gene McCluney >Hello Vick: > >With the greatest respect, you do not want to clean your Summarit >yourself. Disassembly is not the problem, it is reassembly. More >important even is cleaning the glass surfaces. Yes, the lens dates >from the era of potential marring of the coating. > >Send it to John Van Stelten. He will clean it with no harm to the >glass surfaces and coating and has the capability to recoat if he >thinks it necessary. And his recoating will be current technology >that will be less easy to mark with a wipe. > >He CLA'd a DR Summicron for me that was really grungy and had pretty >bad fungus growing on lens surfaces. It came back in remarkable >condition though the fungus had been so bad that it left very slight >etching at a couple of spots on the perimeter of one of the lens >elements - had absolutely no effect on images - and opf course he >could not remove the bright spots on the chrome mounts. > >Seth > >----- Original Message ----- From: "Vick Ko" <vick.ko@sympatico.ca> >To: "'Leica Users Group'" <lug@leica-users.org> >Sent: Saturday, June 25, 2005 2:43 PM >Subject: [Leica] Information on the Summarit,from those who repair >or have had one repaired? > >>Hello again. >> >>My Summarit with the separation looks peculiar. I am now not sure that >>it is separation; it doesn't have the rainbow color look of separation. >> >>I am thinking that it might just need a good internal cleaning. It has >>plenty of dust inside. So - my questions: >> >>- is the Summarit of the vintage of soft internal coatings, that will >>wipe off if a cleaning is attempted? >>- is the Summarit straight-forward to disassemble? >> >>I shot some images, and they look okay, but they were not shot under the >>greatest of conditions. >> >>Regards, >> >>Vick Ko >> >>_______________________________________________ >>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