SHUTTER CONTROL APPARATUS FOR PHOTOGRAPHIC CAMERAS

摘要

In a camera having a photoelectric timing circuit for determining shutter speed in accordance with the level of scene illumination, a shutter mechanism including a mechanical override control is provided for establishing a maximum predetermined shutter speed for flash exposures. The shutter mechanism includes an opening blade actuatable to initiate an exposure interval and a closing blade actuatable under the control of the timing circuit to terminate the exposure interval, and the override control includes a member actuatable to permit the opening shutter blade to close after a predetermined time. The override control member is adapted for actuation in response to insertion of a flashlamp unit into a recepticle on the camera and/or in response to actuation of a member accessible from the exterior of the camera.