Archived posting to the Leica Users Group, 2006/12/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Is it a reflex lens with a mirror inside? Then yes, it is a Maksutov design. . If it is a traditional straight Loooooong lens, then no. BTW, why worry about R lenses on an M8? They don't fit too well.... The whole IR issue has to do with the sensor in the M8. Worry about M lenses...... Doug is right that the thin filter that COULD be put on the internal elements of the M lenses require complete engineering review. Yes, the entire filter coatings issue MAY need a change, but maybe not. We simply are in no position to know the answers to these questions..... Imagine.... Just like Rodenstock and Schneider, there could be a whole set of Digital Enhanced Lenses for the M8..>!!!! That would get lens sales up.>....!!!!! Frank Filippone red735i@earthlink.net Yes, I understand it may even require calculating again a lens design, as there may also be elements not suitable to enter a vacuum chamber again due to their composition or material stress suffered during their lives. So, how about a thin filter inside the lens barrel? Or at the rear end, as the MR-Telyt-R 500mm? In any case, it should be possible and relatively simple with the new lenses. Cheers, Ed PS:(BTW, is the MR-Telyt-R a Maksutov?) El 22/12/2006, a las 14:15, telyt@earthlink.net escribi?: > Eduardo Albesi <lists@sololeicas.com> wrote: > >> ... I think that Leica could (should) offer to re-coat >> one of the internal elements with the IR barrier > > Much easier said than done. The existing coatings were designed to > work > with the optical unit as a whole considering color transmission and > flare > among other things and messing with any of the coatings could have > unwanted > side effects. > > Doug Herr > Birdman of Sacramento > http://www.wildlightphoto.com >