Archived posting to the Leica Users Group, 2008/11/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Len, Thanks very much for that. I should have thought of consulting Erwin! Bob ----- Original Message ----- From: "Leonard Taupier" <len-001@verizon.net> To: "Leica Users Group" <lug@leica-users.org> Sent: Saturday, November 22, 2008 10:36 AM Subject: Re: [Leica] Multi-Coating Development > Bob, > > In Edwin Puts "Leica Lens Compendium" he has a section on Coating and > Lens Flare, pages 81 to 83. He states that all current Leica lenses > have multi-layer coatings and that all surfaces are coated. He also > states that the amount of coating for each element depends on the > type of glass used and the desired result from each element. In some > instances multi-coating can degrade performance and single coating is > much preferred. An example he gave of unacceptable performance due to > multi-coating is polarization of the light passing through the element. > > The free, downloadable version of his Compendium is currently not > available but will be in the future. > > Len > > > On Nov 21, 2008, at 11:25 PM, Robert Meier wrote: > >> Marc, >> >> The archives don't answer the question of whether Leica lenses are >> multi-coated. In fact, no one seems to know, as your answer >> indicates -- "... I suspect that that would have been when Leitz >> began multi-coating its lenses." >> Perhaps, Ted, this is an academic question, but it's one I've been >> curious about for some time, and I thought this would be the place >> to ask it. You seem to want to censor my question, even though it >> is a legitimate question about Leica lenses. Why is that? Are >> only questions that interest you allowed here? >> >> Bob >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information