Slit scan outline Technical outline of the slit scan photographic technique, which is also described as animated streak photography. Includes attached diagrams, demonstrating the progression of this photographic technique in producing a photographic image. The technique was designed by Douglas Trumbull (Special Effects Supervisor on 2001: A Space Odyssey) for filming the 'stargate' sequence of the film. The document is marked 'File belongs to Douglas Trumbull'. [1967?]