Twin lens reflex medium format camera, two objective lenses of the same focal length. One of the lenses is the photographic objective and the other is used for viewfinder system. The two objectives are connected, so that the focus shown on the focusing screen will be exactly the same as on the film. Uses 120 roll film with square 6x6 images. Shutter speeds from 1/250 to 1/15 and a bulb setting, aperture from f/4.5 to f/22, and focuses close at just over a meter.