MOTION PICTURE CAMERA FOR THE MAKING OF EXPOSURES WITH FIXED AND VARIABLE EXPOSURE TIMES

A motion picture camera wherein the shutter is adjustable by a knob between a first position in which it shields the film from scene light upon completion of each of its cycles and a second position in which it exposes the foremost unexposed film frame to scene light upon completion of each cycle. The film is transported by an intermittent which is driven by a motor serving to move the shutter through a cycle during each transport of the film by the length of a frame. When the shutter is adjusted to assume its second position, the motor is operated by an electric timer which transmits signals for energization of an electromagnet at intervals whose length is a function of scene brightness. The armature of the electromagnet starts the motor which causes the intermittent to advance the film by the length of a frame and which also causes the shutter to complete a cycle in response to each energization of the electromagnet. This enables the camera to make any desired number of successive time lapse exposures with "long" exposure times (e.g., in the range of one or more seconds or minutes), always as a function of scene brightness.