SMPTE RP 69 – Specifications for Scanning-Beam Uniformity Test Film for 35-mm Motion-Picture Audio Reproducers
This practice describes a test film, the use of which is limited to the determination of the uniformity of scanning-beam illumination in 35-mm motion-picture audio reproducers. This test film is not intended to be used for the determination of the correct position of the scanning beam with respect to the reference edge of the film.
