Closely related to the company's existing DP1 model, the Sigma DP2 is based around a 0.98" diagonal Foven X3 image sensor, which has an effective resolution of 4.64 megapixels with full color measured at every pixel location. The sensor sits behind a 41mm equivalent fixed focal length Sigma lens, and offers ISO sensitivity from 50 to 1,600 equivalents.
Sigma DP2 firmware version 1.02 has been improved in two areas, according to the company. Accuracy of the camera's 9-point contrast detection autofocusing system, which was already tweaked by the previous v1.01 firmware, has been further improved. The method of accessing the magnification display function has also been changed so as to reduce the number of button presses required, and an update to the user manual issued which takes account of the change. The fix for intermittent camera lockups included in the previous v1.01 firmware has been carried over into v1.02, as well.
For more details including how to check the current firmware revision of your camera, as well as how to download and apply the update, visit the Sigma DP2 firmware page on the company's website.