ISO 2906:1984

Cinematography — Image area produced by camera aperture on 35 mm motion-picture film — Position and dimensions

Specifies the position and dimensions of the image area produced by a camera aperture on 35 mm motion-picture film for rectilinear (non-anamorphic) and anamorphic pictures having a lateral compression ratio of 2:1 and an aspect ratio of 2,35:1. In addition, recommendations are given for the perforations serving the positioning of the film in the camera.