This is just for information: there are three types of sensor technologies in use for digital imaging, namely Bayer, Foveon and 3CCD. The latter is used almost exclusively for video cameras, perhaps the algorithmic processing required in the other two introduces too much lag for real time imaging.
Almost all digital cameras used the Bayer sensor, a technology patented by Kodak, and Foveon is only used by SIGMA digital cameras for the moment.
The sensor closest to reality is of course the 3CCD, subject to the number of pixels on the sensor, followed by the Foveon. The Bayer can be thought as only 33% "real", the rest are interpolated, ie a mathematical guess of what "reality" is.
But of course film was not real too.
Almost all digital cameras used the Bayer sensor, a technology patented by Kodak, and Foveon is only used by SIGMA digital cameras for the moment.
The sensor closest to reality is of course the 3CCD, subject to the number of pixels on the sensor, followed by the Foveon. The Bayer can be thought as only 33% "real", the rest are interpolated, ie a mathematical guess of what "reality" is.
But of course film was not real too.