Sigma's New SD15 DSLR and DP2 Compact Cameras Hit, Improved Imaging Engines AboardSigma's new SD15 and DP2 cameras are incremental developments of the original SD14 and DP1 cameras, but without too much in the way of change. The SD15 and DP2 share the same 3-layer 14-megapixel Foveon X3 sensor as their predecessors, but have a new True (Three-layer Responsive Ultimate Engine) II image processor aboard for improved image quality and processing speed. The DP2 has a new flare-reducing 41mm-equivalent F2.8 lens, and has adjusted controls, while the SD15 has a larger 3-inch LCD...but these seem to be the main improvements. We'll have to wait for more info from Sigma to see if the changes make a big difference or not, and for pricing and release dates. [DCWatch]