Sigma SD9 & Foveon X3TM technology

Click here to read the press release on the new Sigma SD9September 24, 2002
The SIGMA SD9 SLR, powered by Foveon X3TM image sensor, capable of capturing all RGB colors, will be introduced at photokina. The date of delivery is October 21.
The Foveon image-sensor features three layers of photodetectors. The layers take advantage of the fact that silicon absorbs different colors at different depths, so one layer records red, another records green and the 3rd records blue...More