Centre weighted average and spot metering

This is the most common metering method, and is implemented in pretty much every digital camera. In this method, the camera scans and calculates the exposure for the entire scene, but the centre of the photograph is given a higher weight age than, say, the edges. In spot metering, only a small area of the whole frame is metered and the exposure of the remaining frame is ignored. This is helpful when shooting portraits or close –ups of people. These two methods are using in most of the digital cameras. The cameras with centre weighted average meter is highly required than spot metering.