The DP3 Merrill camera narrows its angle of view, and that's about it.
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.
The Sigma SD15 is an oddly eccentric fourth attempt at a high-end digital SLR by a manufacturer still better known for its accessories. Good results are achievable, but, by golly, you have to work for them.
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 DP1 is about as far from the mainstream as you can get. It has some obvious limitations and some rather less obvious operational flaws but, despite this, the images produced by its Foveon sensor are of such a quality that you're willing to forgive an awful lot
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 DP2s is only marginally improved over the DP2 we reviewed a year ago, and the competition has raced ahead in that time
Landscape, architectural, and other photographers who crave detail and sharpness should consider this digital SLR, but action and low-light shooters might want to pass.