Archived posting to the Leica Users Group, 1998/12/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I´m not averse to reading Nikon literature but I regard it promotional, as is Leica literature. An uncoated lens surface reflects about 4-8 percent of the light, depending on the wavelength. A single coated lens surface reflects about 1-2 percent of the light. A multicoated lens surface reflects about 0.2 percent. You say this light does not scatter. What does it do? How does it improve optical performance? 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: 14. joulukuuta 1998 19:47 > > >Current Nikon lenses are all multicoated, I do not know about Zeiss. I do > >not believe that increase of non-image-forming light scattered around > >inside a lens would improve its performance. If you can cite a text, I may > >change my beliefs. > > Read Nikon's literature. They make it very clear that multicoating every > lens the same does not work. Your conclusion that one layer in some areas > causes light to scatter around is incorrect. > -- > > Eric Welch > St. Joseph, MO > http://www.ponyexpress.net/~ewelch > > "Call me a bigot but I think all racists are inferior."