Samsung got a bit late to the mirrorless party, but they managed to squeeze a full APS-C sensor into a body roughly the size of the Panasonic GH1:   "One of the most impressive things about the NX10 is its image quality. In general terms, the camera makes a really good job of exposure, white balance and color rendition, meaning that most of the key elements are in place for great photos. The images are perhaps a little under-sharpened (in the style of Nikon), but you can get some improvement by applying a little more sharpening in camera, better still in post-processing or, ideally, during RAW conversion."