Abstract: A camera having an adjustable mechanism to set an exposure aperture, a shutter to control the duration of an exposure and a member movable in a first range to initiate adjustment of the mechanism and movable in a second range to actuate the shutter to open the exposure aperture, includes a single electromagnet effective to become energized and subsequently de-energized to control the mechanism to set a desired exposure aperture and effective to be energized during an open condition of the shutter to hold the shutter open until de-energization thereof. The electromagnet is connected in a control circuit that has a photosensor exposed to scene brightness and switches controlled by the movable member to operatively connect the photosensor to the electromagnet.

Abstract: A camera having a self cocking shutter with a shutter actuating member for initiating exposures and a piezo-electric flash device with a flash firing spring that is cocked in concert with film advance, includes a double exposure prevention latch that disables the shutter actuating member when the flash firing spring is not cocked.

Abstract: A camera adapted to make exposures of a scene illuminated by substantially constant or transient (flash) light includes exposure control apparatus having a photosensor to effect an exposure of duration related to the intensity of the light, a focus control and first and second light attenuating elements mounted to be selectively positioned in and out of the optical path of the photosensor. The attenuating elements are biased to move toward the optical path; and for exposures in substantially constant light, the first attenuating element is held out of the optical path. For exposures in flash light, the first attenuating element is positioned within the optical path while the second attenuating element is moved out of the optical path while the second attenuating element is released to move into the optical path to an extent determined by the focus control.