Most compacts use smaller CCD or CMOS sensors (usually 7-9.5mm diagonally) whose pixels are just 2-3 microns wide, and use a striped or Bayer-pattern RGB filter array to help create a color image from black-and-white-sensitive pixels. At 24.9mm diagonally, the DP1's Foveon X3 Direct Image sensor measures far larger than most compact camera sensors. It also boasts 7.8-micron pixels (typical of 8-10MP DSLRs). Cameras with larger pixels tend to be more sensitive to light and have better noise performance at higher ISOs.Check it out over here. This 14.1 megapixel digicam costs $799 but according to the site the image quality is unmatched in a compact camera. The DP1 has low distortion an performs well in low light conditions and at ISO 400 and 800 settings.
Sigma DP1 tested - dSLR sensor in a compact digicam
Posted on Monday, Mar 31 2008 @ 02:58 CEST by Thomas De Maesschalck
PopPhoto published a review of the Sigma DP1, this new camera is the first compact digital camera that features a dSLR-sized image sensor: