Sigma has announced a series of firmware and software updates for its Foveon-based cameras. The update to its Photo Pro software (for both Mac and Windows), corrects the green tint that could appear at the corner of some DP1 images, it also improves the color reproduction of RAW images from the SD14 DSLR. New firmware for the DP1 adds composition grids for most shooting modes, too. Read the whole article here. You can buy the camera here