Sylwester Pietrzyk wrote: > On 04.10.2006, at 12:56 , Shel Belinkoff wrote: > >> Lots of companies use Hoya glass, even Leica. I'm sure Pentax is >> using >> Hoya glass where appropriate. > But SMC is Pentax own, isn't it? ;-)
"SMC" was revolutionary 30-odd years ago, but these days anyone with the right software and a basic understanding of optics can design high performance multi-layer optical coatings. SMC is just a brand. http://www.thinfilmcenter.com/ S -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net