Archived posting to the Leica Users Group, 2011/06/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I love ceramics. Also I love carbon fiber. And titanium. And brass. Aluminum not so much. Mark -------------------- Mark William Rabiner > From: Douglas Sharp <douglas.sharp at gmx.de> > Reply-To: Leica Users Group <lug at leica-users.org> > Date: Tue, 14 Jun 2011 18:22:32 +0200 > To: Leica Users Group <lug at leica-users.org> > Subject: Re: [Leica] Leica Prices may not be artificially high > > True, state of the art plastics and ceramics can beat > most metals into a cocked hat when it comes to > desirable properties. > > Things like low expansion coefficients and light weight > are pretty decisive in a lot of industries. > > Cheers > The other Douglas > > On 14.06.2011 13:33, Doug Herr wrote: >> Mark Rabiner wrote: >> >>> And also also also that not super high end glass they use is held >>> together >>> not by brass or aluminum but by plastic. Real nice plastic though. But >>> plastic by any other name. its lighter! Just don't bump the lens against >>> a >>> door jam going through the doorway. >> Plastics by whatever name can be remarkably tough and can bounce back >> where a >> metal would have permanently deformed. Thermal expansion properties can >> also >> be managed such that the bits holding glass elements in place will expand >> and >> contract at the same rate as the glass. Plastic isn't always cheap junk. >> >> Doug Herr >> Birdman of Sacramento >> http://www.wildlightphoto.com >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information