Well, if you just mount one cheap zoom lens onto it, the
plastic
mount may last 1,000 years.
[...]
If you keep changing lenses, the plastic may not hold up as
well. And if you keep mounting lenses that cut
grooves into it, the plastic mount may not hold up beyond a
year or
two.
I'm not opposed to judicious use of plastics in cameras, but
lens
mount and other stress points aren't the place to do it.
---
Hi again.
It all depends on many conditions. Some kind of plastics
very durable. Polycorbonate of course just for very cautious
use with one zoom lens. But as former composite materials
engineer I know many materials which can be MUCH better than
metal in lens mount (and not only in mount - all camera's
"skeleton" can be produced from composites and it can solve
many problems - especially! for long time or hard condition
use). But of course they all expensive :-)
best wishes from cold (-23 degree below zero) Russia
Den
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