Archived posting to the Leica Users Group, 1997/01/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Mike, I don't know the composition of Leica bodies. Please do not judge a book by its cover. The bodies in the photograph may have been coated. This is frequently done to castings for many reasons. One of them would be to seal the surfaces and prepare them for the next step in fabrication. I would prefer the top plate to be made of brass, because it would be softer and tend to absorb impact better than other alloys. I don't know how the titanium coating is applied. I bet that this is an advanced process, unlike that used to apply the chrome. Probably, the titanium has greater resistance to tarnishing and is harder than chrome. Chris At 11:18 AM 1/2/97 -0800, you wrote: >Dan Cardish wrote: > >> Some people think that if the M3 was brass, then therefore the M6 should be >> brass also, regardless of the actual differences between zinc and brass. >> >> Dan C. > >This may not prove anything on way or the other, but the latest M >brochure from Leica has a photo of a number of unfinished M bodies >laid out and they appear to be brass at, least in color, FWIW. >Mike G. > > - ------------------------------------------------- C.M. Fortunko Group Leader, Materials Characterization (853.05) National Institute of Standards and Technology Materials Science and Engineering Laboratory 325 Broadway Boulder, CO 80303 tel. (303)497-3062 FAX (303)497-5030 e-mail: fortunko@boulder.nist.gov - -----------------------------------------------