Hot on the heels of its new SD15 digital SLR (review coming soon), Sigma has announced the SD1, a new Foveon-based DSLR due for release early next year, with an early prototype displayed in a glass case on the company’s stand at Photokina. The SD1 has the potential to finally establish the Foveon X3 sensor as the real rival to conventional CMOS and CCD sensors that it has never quite managed to be so far.
The main criticism of previous Foveon-based cameras has been that while they excel at colour rendition, they lack the total resolution to compete with modern conventional sensors. However the completely new Foveon sensor in the SD1 should finally silence the critics, because it has an equivalent resolution of a massive 46 megapixels, in other words 4,800 x 3,200 pixels (15.36MP) in each of three layers. The sensor is APS-C size, with a crop factor of 1.5x.
Other details available so far include an 11-point AF system with two centre cross-type sensors, a 3.0-inch LCD monitor with 460k dot resolution, and dimensions of 145.5 x 112.5 x 80mm, although the weight is as yet unknown, as is the exact launch date and likely price.