The RAW data format of the camera keep brightness and color data in a 1:1 ratio without relying on interpolation.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

The RAW data format provides pure data for high-resolution images, and uses lossless compression for more compact, yet uncompromised, data files.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

The powerful processor can output image data in 14-bit RAW format, giving advanced users total freedom to express their creative vision throughout the shooting and post-production processes.

ENGADGET: Sony's Cyber-shot RX1 compact camera packs a full-frame sensor, 'fits in your palm' (hands-on)