Photographic camera with film feed correction - detects film feed overrun to allow correction for latter during next film feed operation

摘要

The camera has a film feed device with a pulse generator (28) providing a pulse train signal synchronous with the film feed operation, supplied to a film feed control (20). This terminates the film feed operation and detects any increase to allow correction for the latter during the following film feed operation. Pref. a film feed stop command is supplied by counting the number of pulse generator pulses, with the overrun detected via pulses supplied between the generation of the stop command and the halting of the film feed operation. ADVANTAGE - Prevents accumulation film feed error.