Sigma is turning camera development on its head by developing a camera specifically to take full advantage of the Global Vision lens series with the release of the sd Quattro Mirrorless Digital Camera with a Sigma SA lens mount. This camera offers the utmost in resolution with a 29MP APS-C Foveon X3 Quattro CMOS sensor that uses a unique stacked design to deliver full color information at every single pixel without interpolation. By using a 1:1:4 RGB pixel ratio with a layered design, this eliminates the need for an optical low-pass filter, the sd Quattro can create 19.6MP lossless compressed raw images with a spatial resolution equivalent to that of a 39MP Bayer sensor. .

See recent price change history for the Sigma sd Quattro.