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[filmscanners] Re: FINALLY, why Nikon LS-8000 bands




Art,

> So, in conclusion, I don't think necessarily the other scanners don't
> have some of the same mechanical problems the Nikon manifests, it is
> just that the design of the other scanners tends to HIDE these problems
> by the way they capture and reconstruct the image, while, in fact, the
> Nikon LS-8000 would drastically EMPHASIZE these defects by its design
> and manner of reconstruction the image.

I'd like to add here that, apparently, the LS-4000 ED has the same
problem, since it also uses a 3-line sensor. I'm not sure how large
the effect is in that case.

> Unfortunately, so far, at any cost approaching reasonable, these factors
> apparently cannot be designed out of scanners yet, and Nikon, it would
> appear, did not factor these physical limitations into the LS-8000.  In
> fact, this banding problem showed up long before the LS-8000, in some of
> the LS-2000 models.  I suspect it was further aggravated by the size of
> the structures needed in the LS-8000 to handle larger film sizes.  I
> also suspect this banding problem will become more noticeable with aging
> of the device, as tolerances get sloppier still.

Really? As far as I can tell, none of the previous scanners had more
than one CCD line (LS-2000 certainly didn't), and all Nikon Coolscans
had a LED light source, so where did the banding come from?

> If I knew that my last name translates from higher German to "Eureka!"
> or "Enlightenment".

Actually, "endlich" means "at last", and there is no such word in
German as "entlich". And I'm not a military official either.

  Andras

===========================================================================
Major Andras
    e-mail: andras@users.sourceforge.net
    www:    http://andras.webhop.org/
===========================================================================

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