Automatic exposure control device for use in a photographic camera

摘要: In a photographic camera in which the diaphragm aperture for exposure is preset, and shutter speed thus preset automatically controlled with respect to brightness of object when at fully opened also accordance film sensitivity, an automatic control device so programmed that prior commencement exposure, determination made whether aforesaid higher or lower than predetermined boundary value. If be value, will maintained open position, without being set aperture, as obtain proper whereby then effected.