A camera system is designed that can obtain stereo information in a si
ngle shot and through a single lens. A single image obtained by this c
amera is equivalent to two images obtained by two aligned cameras with
exactly the same optical properties. In this system, stereo is achiev
ed by viewing the reflections of a scene in two mirrors that have a co
mmon axis. The angle between the mirrors may be changed to adjust the
field of vision of the camera and to fixate at desired points in a sce
ne.