Regarding exposure compensation, it is
usually used by many people, and it is also a most practical and effective function, but it is often confusing.
For example, some friends will ask such a question: "You said that the moon should be compensated with negative compensation. But the brightness of the moon is very high, the moon is white, and according to the principle of white plus black reduction, should it be correct compensation?"
This is a very typical case. Why is it necessary to compensate for the moon? How to explain the principle of white plus black reduction?
Normal exposure, the moon is a white cake.
Using spot metering, metering the moon, and then subtracting one or two exposure compensation, the details of the moon come out.