Archived posting to the Leica Users Group, 1998/12/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I do not want to argue with you. But I still think that Leica is moving/has moved towards multicoating. I agree that even in a multicoated lens all elements are not coated the same. The patents were held by Pentax and in their early brochures they too stated that "most" of the lens surfaces were multicoated but now they do claim that "all" surfaces are multicoated. I think that cost was the deciding factor. In the Leica brochures in my possession there is no mention of coatings whatsoever so I´m inclined to think of "sour grapes". And IMHO Leica coatings have improved. My 90mm Tele-Elmarit from about 1978 was quite flarey but my 90mm Summicron from 1984 is not prone to flare at all - and this flare was the reason why I changed these lenses. So I have some experience in this matter. And - yeah - - I have a substantial inventory of Pentax gear, the lenses I own are quite sharp but not up to Leica standards - but quite immune to flare. Raimo photos at http://personal.inet.fi/private/raimo.korhonen nyt myös Kameralehden juttuja suomeksi - ---------- > From: Eric Welch <ewelch@ponyexpress.net> > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] RE: Re: KINOPTIC lenses > Date: 15. joulukuuta 1998 0:38 > > >You say this light does not scatter. What does > >it do? How does it improve optical performance? > > Leica has said that to multicoat every element can degrade image quality. > That some times the formula calls for single layers on some elements. Erwin > has yet to disagree with that. I suspect that you are as much a victim of > other manufacturer's propaganda about their multicoating as you think I am > of Leica's. I've yet to see any manufacturer who knew more about coating > than Leica except maybe Zeiss. I don't have to have an optical engineering > degree to trust Leica's word. > -- > > Eric Welch > St. Joseph, MO > http://www.ponyexpress.net/~ewelch > > 98% of all statistics are useless.