Unfortunately, real Foveon is a thing of the past, Sigma switched to a Bayer sensor in their latest "fp" camera and their last Foveon-based Quattro had 3 layers but a 4:2:2 pixel mosaic, making it no longer a "true Foveon". I owned SD1 Merrill and it was the sharpest camera I've ever used, but there is nothing comparable on the market these days.