Abstract: In a distance measuring device of a camera, a distance measuring optical system unit has light-emitting and light-receiving elements for distance measurement. The distance measuring optical system unit is rotated from one end of a photographing screen to the other end thereof to perform a distance measuring operation. The distance measuring optical system unit is rotated and stopped in a set distance measuring range by a cam rotated by a DC motor and a driven arm portion of the distance measuring optical system unit. Distance measuring object ranges of the distance measuring optical system unit are switched by a switch. For example, the distance measuring object ranges are set with respect to many-point distance measurement or one-point distance measurement.

Abstract: A camera having a television mode has a shutter unit for opening and closing a plurality of shutter blades used as a shutter and a diaphragm by rotating a step motor in normal and reverse directions; a photometric device for performing a photometric operation with respect to a photographed object; a mode switching device for selectively switching a television mode for photographing a picture image on a television screen and a normal mode for performing a normal photographing operation; a trigger switch for outputting an open signal in synchronization with an operation for opening the shutter blades and outputting a closed signal in synchronization with an operation for closing the shutter blades; and a calculator for calculating an exposure amount by photometric information provided by the photometric device when the normal photographing mode is selected by the mode switching device.

Abstract: An exposure control device for a camera having a photometric unit for measuring brightness of an object and its ambient brightness individually, a range finding unit for measuring a distance from the device to the object, and a strobe light unit, the device includingbacklight detecting unit for detecting whether the object is in a backlight condition or not on the basis of the brightness of the object and its ambient brightness measured by the photometric unit; anda unit for allowing the strobe light to flash in either case the brightness of the object measured by the photometric unit is smaller than a predetermined brightness or the object is detected to be in the backlight condition by the backlight detecting unit, if the distance from the device to the object measured by the range finding unit is smaller than a predetermined distance, and for lengthening an exposure time without allowing the strobe light to flash within the limits of a predetermined time in case the object is detected to be in the backligh