The advantages of working in a Research Lab. This camera was bought in 1960 for $120,000. Beckman and Whitley cameras are still in use, and this one was being refurbished. The Helium Turbine is used to spin a prism, which is used to expose the stationary strip of 35mm film. It is layed out on a Drum, and each frame is illuminated with a fast strobe light synchronized to the spinning prism.