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Re: [OM] tech lens question

Subject: Re: [OM] tech lens question
From: clintonr@xxxxxxxxxxxxxxxx
Date: Fri, 17 Nov 2000 22:40:52 -0600
Depends (somewhat) on which lens - what do you have?

On most Oly lenses, the focusing ring is held in place with 3 set
screws, underneath the grip.  If these are loose, they will eventually
allow the ring to slip and you might end up separating the helicoid -
bad news, if you don't know how to reassemble.  Better to tighten them
before it gets to be a problem.

A few Oly lenses don't tighten that way, but they're rare.  And some
develop "wobble" in the helicoid (the guides and/or tracks wear out or
the threads themselves get worn and "sloppy") from use.

Eric Goodell wrote:
> 
> If a lens has a little play in the focus ring (+/- 1-2mm left and right),
> but otherwise focuses well, i.e. does not change focus due to the play, is
> this a major problem? will it soon become unusable?
> 
> Thanks,
> Eric
> 
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