Originally posted by normhead Correct me if I'm wrong, but I believe I read because of the way Sigma counts it's pixels, 3 per site... when every one else counts one pixel per site, that the 46 Mp Foveon image is actually about the same as a K5 image, in terms of pixel count and IQ. It doesn't say it for the DP1, but it says it for the SD1 which is the same sensor.
4704x3136. Not even as many MP as a K-5. And only 12 Bit colour depth. I hate the way Sigma does this.. their images should be better, accept they aren't, and their numbers of pixels for printing are always below everyone else's. They want $7,000 for K-5 quality. Everytime I get excited about them, they let me down. The DP1 probably doesn't actually work any better than a K-01.
When I save my K20D files as 16 bit Tiff's theay are 83 Mb, however, I'd never claim it was an 86 Mp camera.
Technically even though the true resolution is 3x less, the amount of detail at low ISO should be better than a k-5 because of the way the Foveon sensor works and the lack of a AA filter required.
But their price is a little ridiculous anyways - they have a new SD1 out now though, for $3200.