The DP3 Merrill camera narrows its angle of view, and that's about it.
The Sigma DP2 doesn't really live up to the promise of its Foveon sensor, but it does excel for shooting in black and white photos.
The Sigma SD9 is a mediocre digital SLR that occasionally displays flashes of greatness.
LIke its enthusiast compacts, Sigma's Foveon-based interchangeable-lens models are kind of odd.
Sigma and Foveon fans, who have been waiting eagerly for this camera, might be interested in the SD14, but consumers can easily find more bang for their buck from other SLRs on the market.
The trio of Foveon-based cameras announced in February are priced similarly to their predecessors.