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Re: [OM] Oily Zuiko blades

Subject: Re: [OM] Oily Zuiko blades
From: "John Hermanson" <omtech@xxxxxxxxx>
Date: Sun, 4 May 2003 12:22:22 -0400
With age, some lenses may end up with oil on the diaphragm blades or
diaphragm mechanism.  This happens when the helicoid grease separates and
won't necessarily be avoided by storing the lens in a certain position.
_________________________________
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: "Tim Helps" <thelps@xxxxxxxxxxxxxx>
To: <Olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, May 04, 2003 12:09 AM
Subject: [OM] Oily Zuiko blades


> thanks to the people who answered my earlier question regarding the F280
and
> the OM4. I have another OM question...
>
> Sorry if this has been discussed before,
> I have read in an earlier post that "the aperture blades of a lens can get
> oily when the lens is stored in a certain way". I myself have seen quite a
> few oily blades in my days.
>
> What is the wrong way or a risky way to store a lens?
> Is the effect of heat going to soften the lubricants and allow them to
flow
> onto the blades?
> Where in the lens does the oil come from?
> Can the oil be cleaned off the blades? and how hard is this to do?
>
> Thanks
> Tim
>



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