PHOTOGRAPHING METHOD TO GIVE AUTOMATIC CONTROL TO CONVERSION OF FOCAL DISTANCE OF ZOOM LENS DURING PHOTOGRAPHING BY SLIT TYPE CONTINUOUS SHOOTING CAMERA PLUS FILM SHIFT SPEED AND LENS DIAPHRAGM CAUSED BY SAID CONVERSION OF FOCAL DISTANCE

摘要

PURPOSE:To realize the effective photographing without fixing a camera, by consecutively converting the lens focal distance during the photographing and carrying out the automatic control for both the shift speed of a film and the open/close of the lens diaphragm. CONSTITUTION:The focal distance of a photographing lens is consecutively converted during the photographing by a slit type continuous shooting camera. According to this conversion of the focal distance, both the speed of a film shifting at the back of the slit and in a certain direction and the open/close of the lens diaphragm are changed automatically and at a time. In such constitution, when the photographing is carried out while a slit camera is shifted or turned, the continuous shooting is possible while keeping the subject in the same size or magnifying or reducing it to an optional size.