Digital compact camera series sigma dp sensor size 23 5 x 15 7 mm optical zoom 1 x digital zoom 1 x display size 3 inch effective pixels 29 megapixel sensor type foveon x3 image processor dual truepic iii video vga display type lcd focal length 50 photo focal length 35mm equivalent 75 mm aperture 28 16 maximum lens speed 2 8 light sensitivity iso 160 6400 photographic shutter speed 30 12000 sec colour depth 24 bit resolution 5424 x