| 摘要 |
PURPOSE:To select shutter speeds irrespective to the feed of a film and perform correct exposure by opening the shutter which is opened and closed in cooperation with the opening and closing of a camera shutter provided in a photographing optical path by means of a photodetector for the photographing light split from the photographing optical path. CONSTITUTION:The device is so constituted that the shutter 3 and 2nd shutter 10 of a cine camera are opened cooperatively in photographing. The light split by a split prism 6 is measured by a photometric lens 8 and a photodetector 9, by which correct exposure is determined. Since the exposure is determined by the 2nd shutter 10, the 2nd shutter 10 is closed at the correct exposure point according to the detected value, and based on the signal thereof, the shutter 3 of the camera is closed, so that the photographing at the shutter speed faster than the shutter of the cine camera is accomplished. |
