Photographic metering for photography

Multi-area metering

Multi-area metering is also called evaluative metering. It divides the picture into several areas. After each operation is done independently, sort them out. To obtain a complete exposure value, multi-area metering methods often give priority to the main target being focused, because in most cases, the main target being focused is the part that needs to be correctly exposed. With multi-zone metering, even people who know nothing about photography can easily obtain accurate exposure results. Therefore, multi-area metering is a relatively advanced and popular metering method, and it is also the default metering method for current high-level automatic cameras.

Center-weighted average metering

Center-weighted average metering is a metering mode commonly used by most cameras and is widely used. Center-weighted metering means that the exposure reading is most affected by the central area and least affected by the four corners of the frame. Usually center-weighted metering is more sensitive to the central 2/3 of the frame (the specific range varies according to different brands of cameras) (different), some cameras pay attention to the bottom of the picture to reduce the impact of the sky on the scene. Under normal shooting conditions, center-weighted metering is a very practical metering method, but if the subject of the picture is not in the center or If you shoot with backlight, it may cause metering errors.

Spot metering

Spot metering, also known as focused metering, measures 1%–5% of the viewing range. Spot metering mode is rarely used and not easy to master. But in some situations, spot metering can play an important role. Understand under what circumstances you should use spot metering, and be able to use spot metering correctly. On the one hand, you can accurately expose the subject, and on the other hand, you can use "photosensitivity latitude" to create wonderful pictures that cannot be seen in reality.

Situations where the spot metering mode is suitable: situations where the light distribution in the scene is uneven and the contrast is large, such as under backlighting. If spot metering is not used in this situation, the exposure of the subject that needs to be represented may be inaccurate. , when it is too bright, the main character becomes a silhouette, the picture is white and has no layers, or it is too dark and details cannot be seen.