The DP1x's integral 16.6mm F4 lens (equivalent to 28mm on a 35mm film camera) is built to the same design as the DP1's and produces the same outstanding image quality.  The large-diameter of aspherical glass provides low distortion and high contrast images. It also offers superior peripheral brightness. The super multi-layer coating reduces flare and ghosting. It allows photographers to take pictures in difficult light conditions. This lens and SLR-sized image sensor provides natural shallow depth-of-field.