Archived posting to the Leica Users Group, 1998/09/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]In the case of Leica, the finish of the M6 Titanium is titanium, but there are some camera bodies such as the Nikon FM2/T and the prism housing of the F5 wich are supposed to be solid titanium. Dan C. At 03:25 PM 21-09-98 -0700, you wrote: >is the piece Titanium or Titanium FINISHED brass? >-----Original Message----- >From: Dan Cardish <dcardish@microtec.net> >To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us> >Date: Monday, September 21, 1998 3:10 PM >Subject: Re: [Leica] Lens wt vs finish->Now question about titanium > > >>You make it sound as if titanium is not sutable for camera bodies either! >>Thank you for clarifying the issue. >> >>Dan C. >> >>At 03:26 PM 21-09-98 -0400, Frank wrote: >>> >>>Dan Cardish wrote >>> >>>"I have been told that titanium is no more coslty than steel, and not any >>>more difficult to machine." >>> >>>Sorry Don you have been told wrong. >>> Loads of "high tech" materials are used in consumer goods for marketing >or >>>fashion reasons only. (They are often used inappropriately by engineers >as >>>well!) >>[snip] >>>Titanium is certainly excellent at corrosion resistance but the 6Al4V >>>normal alloy is not especially strong and all Ti alloys are extremely >notch >>>sensitive and prone to cracking. Also because of its low Youngs modulus >>>Titanium parts are not very stiff. Still its a good material for a very >>>limited number of applications. It is specified far to often for >>>fashionable rather than technically sound reasons! >>> >>>Ti does not make a very good choice for a lens barrel in my view. >> > > >