"Peter Spiro" <[EMAIL PROTECTED]> wrote:
> Here's another risk to watch out for in lenses that I never knew
was
> possible before. I was thinking of buying a used MZ-M as a spare
body,
> which had an autofocus Sigma lens that came with it. I didn't
need the
> lens, and so I would have been putting it up for sale on eBay. I
know that
> autofocus lenses can get their electronics messed up, so I put it
on my MZ-5
> to make sure that it worked in autofocus mode. Imagine my
surprise when I
> slipped it in position, and it just wouldn't turn clockwise on the
MZ-5,
> even though it went on the MZ-M perfectly well. On examination,
it looked
> like one of the metal claws on the lens was slightly bent. I
guess it
> gouged a path for itself on the MZ-M's plastic lens mount, but was
stopped
> by the MZ-5's metal mount. This would be a pretty rare event, but
it is one
> more thing to think about when buying used lenses. A seller who
only tried
> a lens on a camera with a plastic mount could in all good faith
claim that
> it was in good shape, while you might not be able to use it when
you get it
> home.
Sounds more like a reason to avoid plastic lens mounts.
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