Distortion in the Projection and Viewing of Motion Pictures
Clifton M. Tuttle · Journal of the Society of Motion Picture Engineers · 1933
At the instance of the Projection Screens Committee an investigation of the distortion in motion picture images was initiated. Although insufficient data have been collected to justify generalization, it appears that the distortion that may be tolerated by the average spectator is greater than one might at first suppose. The paper discusses the subject particularly from the viewing and projecting angles.