Third Dimension Movies And E X P A N D E D Screen (1953)

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THREE-DIMENSIONAL MOTION PICTURES One of these pair should contain two right eye lenses, this pair will cut out one of the pictures on the screen and allow focusing of the other. The other pair of glasses should contain two left eye lenses, so the other picture may be focused. These can be made by the pro jectionist, simply take two pairs of glasses, remove the four polaroid lenses, use the two right eye lense in one pair of glasses, then replace the two left eye lenses in the other frames. This was a trick used by projec tionists, in projecting stereoscopic pictures in the late twenties. Projector equipped with 5,000-foot reefs and interlock selsyn motor—extreme right. Paramount has prepared a booklet for managers and projectionists covering three dimension projection and these instructions should be strictly followed. Owing to differences in design of soundheads,, all projection rooms cannot advantageously use the same type of interlock. Either the mechanical or electrical interlock may be more practical, depending upon the