Frank - I have just tried my 8mm fisheye on three bodies of varying age and
also tried a couple of other Zuiko lenses, including a brand new macro I
have just bought.
The fisheye has some play, and it appears to be more than the others (the
new lens has least, but it does have some). Is it possible that the problem
looks worse on the fisheye simply because one can easily use more torque
due to its large diameter?
I don't see it as a real problem!
David
----------
> From: Frank van Lindert <lindertv@xxxxxxx>
> To: olympus@xxxxxxxxxxxxxxx
> Subject: [OM] Play in lensmount
> Date: 03 June 1998 15:15
>
> Hello all.
>
> I have a question.
>
> Last week I sold a Zuiko 8mm fisheye lens. The buyer pointed me to the
> fact that the lens mount has some play. I quote:
>
> >What really bothers me is that the real part of the lens (essentially
the
> >lens mount) is loose. It can be freely rotated by about 1 degree. This
is
> >certainly not how it should be. I can't see any obvious reasons (all
screws
> >look fastened). Also, it is probably not a transport damage, since the
> >package arrived without any damage, and you really took care in
packaging
> >it right.
>
> I checked my own 8mm lens as well (both are in like new condition) and
> it behaves a bit the same, although it is difficult to see if the play
> is 1 whole degree or slightly less. If the buyer wouldn't have
> attended me to it, I would never have observed... and I am a critical
> buyer myself!
> I wondered if I had perhaps been inattentive or careless, but on the
> other hand a 1 degree rotation gives only about 0.3-0.4 mm shift on
> the mounting ring rim.
> Some of my other lenses, of which one brand new, has the same peculiar
> (now I know it) feeling. I wouldn't call it 'loose' but certainly the
> lens has a bit of play.
>
> My question is, do you reckognize the phenomenenon, and if it should
> be considered normal or not, or more precise: what play is to be
> called 'within acceptable limits'.
> And if it is a fault indeed, my second question would be how this can
> be taken care of....
>
> Thanks for all comments.
>
> Frank van Lindert
> Utrecht NL.
>
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