METHOD AND MEANS OF ACCURATELY POSITIONING FILM IN A FILM PROCESSING MECHANISM

摘要

This invention is a film feed control for a film advancement mechanism to accurately position a particular film frame for processing by using the film frame location prior to advancement to determine a sequential cycle of film advancement in which each film frame is first advanced and a minimum predetermined distance by actual measurement and then, without stopping, is advanced a further distance using a timer to control the end of the film advancement cycle by measuring an increment of time for further film advancement determined for each frame based on frame position prior to the start of the advancement cycle.