31. Designation of motion - picture films ; position of emulsion for picture and sound 32. Image produced by 16mm motion - picture camera aperture - position and dimensions 33. Motion - picture sound reproduction , frequency response of sound pressure level ; measurement34. Cinematography - 16 mm motion - picture magnetic film - cutting and perforating dimensions 35. Screen luminance for the projection of motion - picture prints in indoor theatres and review rooms 36. Frame frequency and film running speed for exposure and projection of motion - picture films 37. Specifications for motion - picture cameras - zero point for focusing scales - 16mm and 8mm 38. Cinematography - picture areas for motion - picture films for television - position and dimensions 39. Projection of still pictures and motion - pictures ; light measurements of projection units 40. Cinematography - 8 mm type s motion - picture raw stock film - cutting and perforating dimensions
