Er, the Robotic Arm Camera ( RAC ) imaged the lander underside.
RAC can focus to within 11 mm, so it can do a "life size" ( 1:1 ) images. It is also equipped with its own Red,Green,Blue LEDS so it can illuminate the images it is photographing in color. Couple that with a 3D offset, panorama sequences and we are talking some pretty neat images.
Think of it as