ABSTRACT
Exposure value, or EV, is another way to talk about light values. One EV is the same as 1 stop, which continues to make photographer’s life easy. Exposure value (EV) compensation, sometimes also known as EV correction, is a semi-permanent change photographer can make to their camera's light meter. When photographer’s camera comes out of the box, it will be set to an EV compensation of 0. If photographer find that their meter is reading a bit off, they can introduce an EV compensation to counterbalance that issue. If photographer's shots are over-exposed, they set the EV compensation to a negative value, and, conversely, if their shots are under-exposed, they choose a positive EV value. If photographer’s shots are bright and fairly evenly exposed across the entire frame, then this won't be as much of an issue, there are several ways to set up their cameras metering.
