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     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

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[filmscanners] Re: LS2000 Coolscan shadow noise issues getting worse?



> Hi All
>
> A few months back I wrote asking whether anyone had seen very
> pronounced streaking/noise occuring in shadow areas on scans from the
> LS2000 coolscan.
>
> I was kindly sent instructions on how to go about cleaning the
> lens and mirrors in the units.  I completed this work.
>
> A few weeks later and I've just done a full res 16x scan and been
> appalled at the level the noise streaks across the scan (in the
> direction of scan travel).
>
> I'm fast coming to the conclusion (and concern) that indivdual
> elements in the CCD array (if that's what it is?) are
> deteriorating with time?  Is this feasible?  Has anyone else seen it?
>
> Thanks
>
> Rob Suisted
> www.naturespic.com

Whoops.
I just posted to previous thread, suggesting the mirror clean.
So guess that wasn't it. Sorry.
Btw, do you see the streaking in a non-multisample scan?
I don't really understand WHAT is moving in there doing
multisample, but if you don't see it on 1x scan, perhaps it's more a
mechanical wear of the movement not aligning perfectly anymore
rather than actual CCD "aging"?

Of course, even if you determine that's the case, would need
servicing I suppose, so may be moot.


           Mac McDougald -- DOOGLE DIGITAL
  500 Prestwick Ridge Way # 39 - Knoxville, TN 37919
 doogle@doogle.com  865-540-1308  http://www.doogle.com

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