The present invention can be applied to a control device wherein the probability of giving the proper exposure to the primary object photographed is high even when the regions to be found in range within the photographing distance are plural, thereby to being capable of more positively judging the backlight condition, an automatic focus adjusting apparatus capable of more reflecting the photographing intention of the photographer, an exposure control apparatus capable of normally providing the proper exposure amount with respect to the photographed object independently of the distance to the object photographed even when the daylight synchronized flash photographing operation is performed, and a control device which does not need a switching circuit and the switching operation by it.