at values other than ±0, exposure compensation is shown in the monitor.
choosing an exposure compensation value
1、as a rule of thumb, select positive values when large areas of the frame are very bright (for example, when photographing an expanse of sunlit water, sand, or snow) or when the background is much brighter than the main subject. use negative values when large areas of the frame are very dark (for example, when photographing a forest of dark green leaves) or when the background is much darker than the main subject. this is because the camera, in order to avoid extreme over- or under-exposure, tends to lower exposure when the frame is very bright and raise exposure when the frame is very dark, which can make naturally bright subjects look dim and naturally dark subjects appear over-bright, or "washed out."
2、the easiest way to choose an exposure compensation value is to examine the view through the lens in the monitor. if image appears too dark, raise exposure compensation. if it is too bright, lower compensation. continue to adjust exposure until the desired result has been achieved.