Verfahren zum Ermitteln eines von der Objekthelligkeit abhängigen Belichtungssteuerwertes für die Belichtungssteuerung einer Kamera

摘要

A multi-area brightness measuring apparatus for a camera, which measures the brightness of an object in a center area of a photographing area and a circumferential area surrounding the center area to detect whether the object in the center area is in follow light state or in back light state in order to correct the exposure value. The exposure also can be controlled in accordance with the magnification, i.e. in accordance with the surface area of a main object occupying the center area.