It looks odd to me - a lot of play in the helicoid, more than grease would
solve, but very little external signs of use!
> From: "John Hermanson" <omtech@xxxxxxxxx>
> Reply-To: olympus@xxxxxxxxxxxxxxx
> Date: Wed, 25 Sep 2002 17:06:37 -0400
> To: <olympus@xxxxxxxxxxxxxxx>
> Subject: Re: [OM] 50/3.5 with a clunk
>
> 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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>>>>
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