When to use it, spot metering. Evaluate metering. Center-weighted average metering, what’s the difference?

Spot metering is to meter only one point, which is usually at the same position as the focus point (actually it is just a very small area, not a complete point). The advantage is that according to the photographer's preference, a certain point that the photographer thinks is correct, or the subject being photographed can be accurately metered without being interfered by other nearby lights.

Evaluative metering is to meter the entire picture, that is, to mix all the reflected light in the picture for evaluation.

Center-weighted average metering refers to measuring the central part and the rest of the frame separately, and then taking the average. Each manufacturer often uses a different weighted average. For example, Nikon manual cameras generally use the center 60%. , take 40% around.

Extended information:

Using special light often can produce many different effects from ordinary ones. Let’s take a look at some principles of exposure:

1 . Make sure the brightness of the two subjects is consistent to correctly express their color relationship.

2. Changes in light and shade are a good way to enhance the artistry of the picture, and can make the colors of the picture appear more gorgeous.

3. Light with obvious directionality can greatly improve the quality of the picture.

5. Exposure is a comprehensive issue and is not simply measured with a light meter. It’s just the brightness of the character’s face.

6. When shooting portraits in outdoor wedding photography, you must first consider the exposure of the environment, and then use some methods to unify the brightness of the characters and the environment or intentionally enhance the differences.

Baidu Encyclopedia-Exposure (photography terminology)