That high a serial number is two piece mount. Helicoid key could be
loose but I suspect helicoid grease has dried up and the play you feel
are the 3 focus tube parts slopping around.
___________________________________
John Hermanson | CPS, Inc.
21 South Ln., Huntington NY 11743
631-424-2121 | www.zuiko.com
Olympus OM Service since 1977
Gallery: www.zuiko.com/album/index.html
On 9/8/2011 5:05 AM, Moose wrote:
> On 9/3/2011 9:26 AM, deebel wrote:
>> John,
>>
>> I have such a lens 5757137 . the chrome mount ring is a bit loose and it
>> doesn't seem to be the three chrome screws which need tightening. If I set
>> the focus to infinity and grasp all of the lens in front of the chrome ring
>> in my left hand and grasp the chrome ring with my right there is twisting
>> movement , not much; less than 1 mm I suspect but noticeable. Can that be
>> tightened up easily?
>
> Hard to remember, but that may be a two piece mount design. Ah, yes, that's
> what John H said. So it's possible you have
> to take out the visible screws, remove the back part of the mount, and
> tighten screws underneath. Don't know for sure,
> though.
>
> Moose
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