Digital BW, The Print

Colour interpolation ISN'T the same as picture interpolation, and claiming 
that a 3.3 megapixel RGB sensor is equivalent to a 10 megapixel Bayer sensor 
is just plain wrong.

It's a characteristic of human vision that you can slash and burn the colour 
information without causing much damage to the overall picture.

TV depends upon it, JPEG depends upon it and four colour screen printed 
magazines depend upon it. 

Don't get me wrong, I think the X3 sensor looks like a significant advance, 
but I hate unnecessary hype.

On Tuesday 19 Mar 2002 11:39 pm, daschkenas@... wrote:
> Having just come from a lecture by Carver Mead, CEO of Foveon, I think that
> its going to be the camera of the future. I'm not tch inclined, but the
> gist of what he spoke about and showed slides is.. With traditonal CCD's
> each pixel records R G or B, then math algorythms, figure out 2/3rds of the
> missing information to construct the entire photo.  With the CCD's that we
> are used to, only 1/3 of picture info is real, the rest is mathematically
> figured out or guessed at.  With the Foveon silicon chip, it acts like a
> piece of Kodachrome film, where there are 3 color reading levels in layers,
> just like traditional film.  therefore no information has to be guessed at
> to fill in the entire photo, its all there.  The reason they say 3 times
> the quality of the conventional chip is that all of the RGB info is
> recorded, not 1.3 of the info, and then mathematiccaly guessed at to fill
> in the photo. Hope some of this makes sense to you.
> The new Sigma camera coming out with the X3 chip will be under $3000.00 and
> be the equivalent in megapixels , compared to actual megapixels in Nikon or
> Canon cameras, it will be 10.2 megapixels.  He said they were printing 48
> inch prints from the Sigma, and compared it to the quality of single
> capture backs on a Hasselblad. Camers should be available May 1st in
> stores.
> Lets wait and see!
> David
>
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