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[filmscanners] LS-2000 - shadow noise & banding developing

Hi All

Been using my LS-2000 for a couple of years and it's been a great
workhorse - having done thousands of scans.

However, I've just started noticing VERY pronounced bands of
noise in shadow areas that streak across the image - i.e. the
same CCD cells are not performing.  It's random but about 20% of
the CCD 'cells' appear to be performing poorly.

What's worse is this is at 16x sampling which is normally very
good at limiting shadow noise.

The unit is not exposed to smoke, or in a dusty environment.
Could it just be that the CCD is getting tired?

Any one else experienced this, or have ideas??



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