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[filmscanners] RE: Newish Digital Tech



Scanners often use either three rows of CCDs each sensitive to a different
color or three different light sources. Therefore you will get the full
color information for each pixel. While a few digital (video) cameras also
use a three CCD approach most of them use just one CCD with a color pattern.
Therefore, you won't get the full color information for each spatial
location. This is different with the X3 sensor. Nevertheless, it is
questionable how well that approach works. I would think there might be some
serious problems with color seperation, sensitivity, noise, etc. I wish
these guys good 'luck' though because if they can solve these problems it
might be a great solution for all of us.

Robert

>-----Original Message-----
>From: filmscanners_owner@halftone.co.uk
>
>http://slashdot.org/article.pl?sid=03/01/08/180222&mode=thread&tid=152
>
>The 'X3' sensor has 3 sensors per pixel point, as opposed to
>3 seperate RGB pixels near to represent one colour 'point'
>as in normal CCDs.
>
>Actually, this has made me curious about film scanners. How
>is each point on a scanned image made up? Is it like a CCD strip?
>Something better?? And if this technology can work for filmscanners
>will it be a very significant improvement?

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