What is automatic bracketing exposure?

Auto-bracketing exposure means that after the shutter button is completely pressed, the camera will take three photos, one of which adopts the current exposure value, and the other two will change the compensation values of +05 and -0.5 respectively.

The practice of automatic bracketing exposure is to expose a photo according to the photometric value, and then increase and decrease the exposure on this basis. If you are still not sure, you can change your exposure and take more photos. The exposure can be adjusted according to the level difference of 1/3EV, 0.5EV, 1EV, etc. The exposure of each photo is different, so you can choose a satisfactory one from a series of photos.

Extended data:

There are two automatic exposure modes. One is to combine the continuous film supply mode. After the user sets the number of shots, press the shutter button once, and the camera will automatically change the exposure and shoot continuously. The other is to combine the single-feed mode, press the shutter button once, and only expose once. This independent design allows the photographer to control the exposure time.

The principle of automatic bracketing exposure mode is that in some cases, it may be difficult to choose appropriate exposure compensation and white balance settings, and there is no time to check the results and adjust the settings after each photo. Auto bracketing exposure can be used to automatically change these settings for a series of photos, thus "bracketing" the selected exposure compensation or white balance setting.

The automatic bracketing exposure mode of the 7900 provides off (normal exposure and white balance are restored) and automatic bracketing exposure (after the shutter release button is fully pressed every time, the camera will take three photos, one of which uses the current exposure value and the other two will change the compensation value by +05. Respectively -0.5).

White balance around (the shutter button will be shot three times each time, and the current white balance setting will be classified to produce a standard white balance photo, a blue tone photo and a red tone photo, and the shooting time is about three times as long as the original one).

Baidu Encyclopedia-Automatic Surround Exposure Mode