| 摘要 |
PROBLEM TO BE SOLVED: To realize an exposure control which is not influenced by reflectance and diffusion characteristic by correcting the exposure based on the output of reflected light from a perforation area obtained in a film moving detection means. SOLUTION: A perforation detection circuit 105 turns on a photoreflector 42 according to a control signal from a microcomputer 100, reflected light from the perforation part of the film is detected by the photoreflector 42, a value in proportion to the reflected light is outputted to the microcomputer 100, and the microcomputer 100 detects the perforation in accordance with the value. Then, TTL light control is corrected every time the film is loaded by utilizing reflection output from the film in the detecting operation of the perforation for deciding the feed amount of the film in the case of automatically loading the film so that the camera may be set to photographing operation for the first frame in photographing when a photographer loads the film in a camera.
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