On 7 Jun 2003 at 19:28, KT Takeshita wrote: > On 03.6.7 6:22 PM, "Pål Jensen" <[EMAIL PROTECTED]> wrote: > > > But it is only the surface cover. The lens barrel on the 77 and 31 Limited are > > made of steel like most FA* lenses. > > Oh, I did not know that. I was told by Pentax that Ltd lenses are made of > aluminum (and glass too :-). > They have to carve a helicoid or two and I did not think steel was used.
I personally wouldn't discount your sources, the arguments thus provided seem to be a lot of hearsay and definitely aren't those of materials scientists. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
