Two 105-150mm zoom camera lenses mounted together with shutter and lots of parts. One lens was used for the camera's viewfinder and the other to take the photo. The lenses are Computar medium format lenses, one is f/4.5-5.6 and the other is f/16. Both have the same 105-150 zoom range. Included are aluminum mounting brackets, 8 Crayford focuser size bearings, shutter with Ledex H-1141-030 rotary solenoid and other miscellaneous parts. Could this be made into a great stereo camera? Let your imagine run with this one. If you take the lens assemblies apart, you'll find lots of lenses and a great mechanical zoom barrel. This is also truly a DIY/EDU bonanza.