September 21, 2010 at 8:08AM Sigma SD1 has a 15.3MP sensor, weather-sealed magnesium alloy body, and no video mode at all (update: eyes-on!)
September 20, 2010 at 7:12AM Pentax K-5 brings 16.2MP sensor, 'much faster' AF, and enhanced HDR to midrange DSLR party
