Abstract: A control device according to the present disclosure includes an acquisition circuit, and a determination circuit. The acquisition circuit acquires a wave width of an ultrasonic wave transmitted by an ultrasonic sensor. The determination circuit determines that a resonance has occurred when the wave width of the ultrasonic wave acquired by the acquisition circuit is smaller than a threshold.

Abstract: Disclosed herein is a camera having a shutter mechanism; actuating means for actuating the shutter mechanism; and, an aperture selecting assembly that is movable from an initial mode position to at least a first mode position. Also disclosed is an aperture selector assembly that is coupled to the shutter actuating mechanism and includes a slide that is selectively movable from an initial mode position to one of a plurality of aperture selecting positions. During slide movement to the desired aperture setting, the strobe is energized and the energy to operate the shutter is stored in a spring. At the desired position, the selector slide is detented by a first clasping device until a shutter button is actuated for releasing the shutter and firing the strobe. A second clasping device becomes operative during shutter actuation to hold the slide in position even though the detent of the first clasping device has been released.

Abstract: Disclosed herein is a camera having a shutter mechanism; actuating means for actuating the shutter mechanism; and, an aperture selecting assembly that is movable from an initial mode position to at least a first mode position. Also disclosed is an aperture selector assembly that is coupled to the shutter actuating mechanism and includes a slide that is selectively movable from an initial mode position to one of a plurality of aperture selecting positions. During slide movement to the desired aperture setting, the strobe is energized and the energy to operate the shutter is stored in a spring. At the desired position, the selector slide is detented by a first clasping device until a shutter button is actuated for releasing the shutter and firing the strobe. A second clasping device becomes operative during shutter actuation to hold the slide in position even though the detent of the first clasping device has been released.