Sigma DP1 Las Vegas test photo gallery : We have had the possibility of working with a preproduction model of the Sigma DP1 during the PMA. Most pictures are taken in the evening in the neighbourhood of "The Strip". Las Vegas is a 24/7 hour city and it keeps surprising me every year during our PMA outings, how many people are attracted to the glitter and glamour of it. The entourage remains typically Vegas-style; spectacular and lots of neon, good for some nice shooting moments. The Sigma DP1 camera is a camera with a special image sensor; a Foveon X3 with dimensions of 20.6 x 13.8 mm. It makes the Sigma DP1 the first compact camera that is equipped with a large sized sensor. Our test camera model is a preproduction model, expected to become available in March.