The Influence of Sprocket Holes upon the Development of Adjacent Sound-Track Areas * -->

摘要: An unmodulated sound-track shows 96-cycle modulation on development. The effect is a maximum at the edge of sprocket holes and diminishes exponentially for distance approximately 30 mils into sound-track. A film modulated by constant frequency amplitude over same area. Both effects are introduced principally during processing film. having no side entirely free these effects. conclusion that standards in many laboratories require improvement to eliminate distortions this type.