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[filmscanners] RE: Kodak's alternative to Bayer sensor pattern

  • To: lexa@lexa.ru
  • Subject: [filmscanners] RE: Kodak's alternative to Bayer sensor pattern
  • From: "Paul D. DeRocco" <pderocco@ix.netcom.com>
  • Date: Thu, 14 Jun 2007 14:48:23 -0700
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> From: Julian Vrieslander
> Not exactly a new idea.  The retina in human eyes uses a
> somewhat similar scheme.  Cone cells are selectively tuned to
> red, green, and blue light. The brain integrates the outputs
> of cones to produce our sensations of color.  Rod cells are
> optimized for low light levels (sensitive to a single
> quantum) and their outputs provide luminance information.
> Mother Nature has been in this business a lot longer than Kodak.
> The analogy between retina and the new Kodak sensor is not
> perfect.  The relative concentrations of rods and cones
> varies across the retina.  And if I remember right, rods are
> not truly panchromatic.

Also, I think rods are pretty much saturated in normal daylight conditions,
so the brain ignores them. In night vision, the cones are putting out zero,
so the brain ignores them.


Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com

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