66Metering ModesThe EOS D30 uses three methods for metering: evaluative, partial, and center-weightedaveraging.The Easy Shooting zone uses evaluative metering. In the Creative zone, any of the three modescan be selected.: Evaluative MeteringThis is an all-around metering mode suited even forbacklit subjects. The viewfinder field is divided into35 metering zones to which the three focusingpoints are linked for evaluative metering. Thecamera determines the main subject’s size,position, brightness, background, front and backlighting, etc., so that it can select the properexposure for the subject at all times. When using manual focusing, evaluativemetering is based on the center focusing point.: Partial MeteringThis is particularly effective when the background ismuch brighter than the subject due to backlighting,etc. This method uses a center area ofapproximately 9.5% of the screen. The area covered by partial metering is shownon the left.: Center-weighted Averaging MeteringThis method meters the average exposure of theentire viewfinder screen, and gives extra weight tothe center.
