Traditional Culture Encyclopedia - Photography major - What file does the photographer use in general?

What file does the photographer use in general?

Aperture priority mode (AV file) is more suitable for portrait shooting. Exposure compensation is to increase or decrease the exposure according to the exposure you want after the camera measures light. M block is to manually set the shutter and aperture value according to the field light. Does not depend on the metering function of the camera. But the camera will display the reference value in the viewfinder.