ISO 3775:1990

Cinematography — Printed 8 mm Type S image area on 16 mm motion-picture film perforated 8 mm Type S (1-3) — Position and dimensions

Specified are the position and size of the printed picture areas for negative/positve and reversal printing. The reduction ratio of prints made from 16 mm negatives or reversal originals shall be approximately 1.8:1. The frame line between the pictures shall be opaque of double exposed in the final print intended for projection.