Sigma Corporation is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan.
The Sigma dp0 Quattro is the next generation of its DP series of APS-C sensor, fixed focal length cameras. The latest, 21mm-equivalent, model features dramatic styling and a fundamental re-think of the company's Foveon multi-layer sensor design. The Quattro sensor still uses three layers to detect color information but now only captures its full, 19.6 million pixel resolution in the top layer, with lower two layers capturing 4.9MP of information each.
he Sigma SD1 is truly a ground-breaking digital SLR camera incorporating a 46 megapixel 24x16mm APS-C X3 direct image sensor. Housed in a weather resistant solid magnesium alloy body it is extremely lightweight and built to withstand the effects of harsh weather conditions.
Successor to the SD14, the SD15 incorporates a 14MP (4MP x 3 layers) Foveon X3 sensor, the same True II processor as the latest DPx models, and a larger 3.0" 460k dot LCD. Other features include SD card compatibility, ISO 100-1600 (50-3200 extended) sensitivity, 21 shot raw buffer at 3fps and 5 frame auto bracketing for HDR-enthusiasts.