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[OM] Re: OT Help needed on Nikon scanner

Subject: [OM] Re: OT Help needed on Nikon scanner
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Wed, 02 Jan 2008 13:27:31 -0500
I would be cautious about using any lubricant of any type.  I suspect 
that these rails, if prone to collect dust, are actually designed to be 
operated dry.  Adding lubricant will only exacerbate the dust problem.

Chuck Norcutt

Jeff Keller wrote:
> The rightmost edge of the picture definitely looks like something
> duplicated pixels creating streaks. It also looks like the focus is
> off.
> 
> You should probably call Nikon and ask them what they use for
> lubricant. You might have a little bit of lubricant combined with dust
> and fibers left on the rails. It is possible that if you clean them
> with a solvent the scanner might work okay for awhile without any
> lubricant. It it were mine and I couldn't find any good advice I would
> try WD40.
> 
> Good luck,
> -jeff
> 
> On 1/2/08, Mike Bloor <admin@xxxxxxxxxx> wrote:
>> Can anyone help with a problem with my Nikon LS30 scanner ?
>>
>> I used the scanner yesterday for the first time in about six
>> months.  I had been waiting until I found time to clean the mirror,
>> which I thought was affecting the quality of scans.  Because of
>> difficulty with one jammed screw, the only disassembly I did was to
>> take off the side and front covers.  I then cleaned the dust off the
>> mirror using moistened lens tissues.
>>
>> I also - and this may have been a mistake - wiped some dust off the
>> two steel rails on which the mirror/lens assembly runs.  In doing so
>> I wonder if I have removed lubricant.
>>
>> On using the scanner again, all but four of the frames in the first
>> film were blurred.  The effect is similar to camera shake.  I then
>> tried repeated scans of one frame, which certainly did not look
>> blurred to the naked eye.  I used both the SR20 motorised film strip
>> holder and the FH2 film strip holder, in case the motorised version
>> that I had started with was causing problems.  There was no difference there.
>>
>> What did make a difference was whether I used the scanner vertically
>> or horizontally.  In the past I have always used it
>> vertically.  Having learnt the difference it can make to the amount
>> of dust collecting on the mirror, I decided to use it horizontally
>> from now on.  In my tests, used horizontally, the scans were almost
>> always blurred.  Used vertically, they are blurred about 60% of the time.
>>
>> You can see examples at http://www.vyuze.com/v/blurred.jpg and
>> http://www.vyuze.com/v/ok.jpg
>>
>> Any suggestions on where to go from here would be gratefully received.
>>
>> OM connection - shot was taken with am OM4 and 100/2.8.
>>
>>
>> Mike Bloor
>>
>>
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