Tektronix C53

The Tektronix C53, Oscilloscope Camera has 0.85 mag lens, and it provides the largest practical image of an 8 x 10 cm CRT display on Polaroid 3 1/4 x 4 1/4 inch pack film. Its f/1.9 lens and 0.85 magnification have a slower writing speed. The electric shutter has speeds that range from 1/60 to 4 seconds and can be operated manually or remotely in bulb, in time, or in single-sweep modes.