The Sigma SD1 Merrill is in its own right a revolutionary camera. Every other color camera on the market uses a Bayer pattern of alternating Red Green and Blue pixels, which they then interpolate data from nearest neighbors to fill in the missing two colors. This is a primary reason for jaggies, blurred edges, moire, low light artifacts and other unpleasantries. Sensor manufacturers have found various solutions to these issues both physical such as antialiasing filters and through improved fimrware and software. The only cameras on the market which do not have to deal with these issues in some way or other are dedicated black and white cameras such as the Leica M Monochrom for stills and the Red EPIC Monochrome (available soon) for video.