C-12
The Tektronix C-12 is an oscilloscope camera for 500-series scopes.
Using a 016-0263-00 adapter, it can be mounted on 7000 series scopes or 528, 601 or 602 monitors.
The C-12 has interchangeable backs for Polaroid roll film, 4×5 film, 120 roll film, and others. There were six interchangeable lenses with object-to-image ratios of 0.5 to 1.0