The Sigma dp1 Quattro is a fixed-lens compact camera with a 19mm F2.8 lens (28mm equivalent full-frame) and the next-generation Foveon X3 Quattro sensor with 39 megapixels at the top layer. It features an H-shaped ergonomic body and distinctive optical design for landscape and architectural photography. The dp1 Quattro is the wide-angle model in Sigma's dp Quattro series.