Carlos wrote: According to Richard Hunecke's books about the MZ-5/3/5n (sorry if I have mispelled his name, I have one of my cats on my lap and cannot go to check it) the internal chassis of those cameras is made of metal (light alloy diecast).
REPLY: Really? I could swear it was an MZ-5 I saw dismantled at the Pentax repair centre. Maybe it was an MZ-50? Anyway, that camera was total plastic; even the cogs in the film transport that were made of different colors as well - red, yellow, blue etc.. Anyway, often mirror boxes doesn't form part of a chassis but are made of metal for keeping tighter tolerances. One example is the Canon EOS3 whose only metal parts is the mirror box which function is not to provide structural stiffness to the body but to give smaller tolerances for the mount/filmplane distance. P�l
