The development of cinemascope shifted the requirement of three frames to a single frame to produce a large image through the use of anamorphic lenses. The lens could condense the wide image onto a thin film frame. To avoid distortion a similar anamorphic lens was used to project the image in the desired width on to screen.
Fox Cinemascope was produced as a reaction to Cinerama and 3-D, but the Cinerama remained unscathed by the development. Instead the conflict arose between Fox and Paramount VistaVision competing to be the industry standard. VistaVision technology focused on the negative by producing a finer-grained and wider film negative surface removing the aspect ratio conversion upon projecting the image to screen.