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Sigma recently announced the Sigma DP1 which uses the same Foveon sensor as the Sigma SD14 dSLR.
The advantage of the Foveon cmos sensor is that it captures full color (R,G, B values) at each pixel location of an image. Foveon useless a three layer approach, which is comparible to the three emulsion layers of color film.
All other sensors use a mosiac single layer approach where color information per pixel is interpolated and not actual.
Indepth review:
http://www.dpreview.com/reviews/sigmadp1/
Sensor site:
http://www.foveon.com
The advantage of the Foveon cmos sensor is that it captures full color (R,G, B values) at each pixel location of an image. Foveon useless a three layer approach, which is comparible to the three emulsion layers of color film.
All other sensors use a mosiac single layer approach where color information per pixel is interpolated and not actual.
Indepth review:
http://www.dpreview.com/reviews/sigmadp1/
Sensor site:
http://www.foveon.com