(under subclass 217) Subject matter having camera operator manipulated means to regulate the amount of light reaching the photos:graphic medium to supersede automatic exposure control or independent of automatic exposure control.
(1) Note. Automatic exposure control is the adjustment of the shutter or the diaphragm in accordance with the brightness of the scene as detected by a photoelement without camera operator intervention.
SEE OR SEARCH THIS CLASS, SUBCLASS:
297+, for operator-controlled data entry into camera.
