The only added equipment needed in CinemaScope filming is the special lens attached to a regulation camera plus two extra microphones, which pick up sound for the stereophonic sound system.
HOW CINEMASCOPE WORKS - Panoramic scene of marching Indians at left is photographed with an anamorphoscope wide-view lens in front of camera lens. This compresses image within the full aperture of 35 film. In projection, another anamorphoscope placed before projector lens expands compressed image to full scale so it appears on screen as shown above, lower right. Three microphones (X) placed strategically to cover the full range of the set or scene record three separate tracks to provide stereophonic sound, an important factor in CinemaScope system.
A UNIQUE LENS which restores to its proper proportions an image previously distorted, makes possible the compression onto 35mm film of wide-angle panoramic scenes, and is the basis of the new CinemaScope system of widescreen motion pictures developed in Hollywood by 20th Century-Fox studios.