Sigma DP2 and SD15: Sensors say bigger is better

We're excited by the DP2, even if it is threatened to be left behind by the likes of Micro Four Thirds and other forthcoming systems that offer larger sensors and interchangeable lenses. Sigma has also launched a new dSLR, the SD15, pictured above. It packs a 14-megapixel Foveon X3, but is a fairly minor improvement over the SD14.