I've found that helicoid grease may dry up allowing the play amongst all the
moving parts of the helicoid to become an issue. If the helicoid wobbles
within itself, regreasing may help, but helicoid replacement may be
necessary.
_________________________________
John Hermanson www.zuiko.com
Camtech, Olympus Sales & Service since 1977
21 South Lane, Huntington NY 11743-4714
631-424-2121 For Free Olympus manuals,
please call 1-800-221-3000
_________________________________
----- Original Message -----
From: "Benson Russell" <snapper@xxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Wednesday, September 25, 2002 12:09 PM
Subject: Re: [OM] 50/3.5 with a clunk
Thanks, Clinton, for the detail - looking in the back of the lens, at full
extension, I can see the mechanism you've described. The movement seems to
be in the outer helicoid thread (closest to the mount) - I can see a little
of the shiny surface of the inside of the outer thread (mount assembly) and
it moves relative to the black rotating part of the focus ring.
I'm not entirely sure I want to tackle this, having bought the lens from a
dealer who'll porbably take it back, or repair it under warranty. However, I
am tempted just to hang onto it, now that I have it... can I do without
it... (early symptom of zuikoholism? ag...)
Much appreciated,
Ben Russell
Ireland
> From: clintonr@xxxxxxxxxxxxxxxx
> Organization: olyfix.com
> Reply-To: olympus@xxxxxxxxxxxxxxx
> Date: Tue, 24 Sep 2002 12:53:15 -0500
> To: olympus@xxxxxxxxxxxxxxx
> Subject: Re: [OM] 50/3.5 with a clunk
>
> Oops! Step Two -- Remove the lens mount. Turn the focus ring out, so the
> lens is set for close focus. There are two guides that keep the
> helicoid in line, and one plate that serves as a "cam" to adjust the
floating
> element as the lens is focused. Make sure the screws for the
> two guides are tight -- if not, tighten them.
>
> Step Three (and probably your problem) -- Look closely where the two
guides go
> into the slots on the side of the body -- along that "ledge"
> (just inside the helicoid threads) you'll see four tiny "+" screws (you
may
> need to turn the focus ring to get to all of them). They have
> probably worked loose -- tighten them.
>
>
>
> julian_davies@xxxxxxxxxxxxxx wrote:
>
>> I can see this working if the focus ring moves on it's own, but if the
front
>> barrel moves as well, surely that is wear in the helicoid?
>>
>> Julian
>>
>>> from: clintonr@xxxxxxxxxxxxxxxx
>>> date: Tue, 24 Sep 2002 18:15:52
>>> to: olympus@xxxxxxxxxxxxxxx
>>> subject: Re: [OM] 50/3.5 with a clunk
>>>
>>> Underneath the rubber grip are 4 set screws -- they're probably a little
>>> loose. Tighten them evenly, then check focus. Replace the grip and
glue
>>> with
>>> a little bit of contact cement all the way around underneath the grip.
>>>
>>> Benson Russell wrote:
>>>
>>>> Hello all, but particularly techies...
>>>>
>>>> I've just got a silvernose 50/3.5 with mint optics and body (ST£160,
serial
>>>> no 105509) BUT...
>>>> I've noticed a slight bit of play in the focus ring (0.2mm front to
back,
>>>> 0.27mm side to side) and consequently the front barrel. Not much, just
a
>>>> tiny clunk as I move it back and forwards.
>>>>
>>>> Certainly looks lovely otherwise, any comments? A good copy lens?
>>>>
>>>> Ben Russell
>>>>
>>>> Ireland
>>>>
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>>>> < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
>>>> < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
>>>
>>>
>>> < This message was delivered via the Olympus Mailing List >
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>>>
>>
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>
>
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>
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