Journal of the Society of Motion Picture and Television Engineers (1950-1954)

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Proposed American Standard Magnetic Sound Specifications for 8mm Motion-Picture Film (Third Draft) PH22.88 FRAME IN GATE LIGHT BEAM FOR DIRECT PROJECTION ON REFLECTING SCREEN The magnetic coating in the above drawing is on the side of the film toward the lamp on a projector arranged for direct projection on a reflection-type screen. Projection Speeds — 24 frames per sec for professional use. 18 frames per sec for amateur use. NOT APPROVED February 1954 Journal of the SMPTE Vol. 62 169