Find out the function and usage of automatic exposure lock

The function of automatic exposure lock

With the function of automatic exposure lock, the photographer can first aim the camera at the subject for metering and lock the exposure value, and then shift the camera for composition.

1. first, open the main interface of the mobile phone, and then select the "camera" option, as shown in the figure below.

2. After opening the camera interface, aim the camera at the object to be photographed, and a square focus box will be displayed on the screen. Select and hold the focus box, as shown in the following figure.

3. After pressing the camera focus frame for a long time, the prompt "Auto Exposure, Auto Focus Lock" will appear above, as shown in the following figure.

4. Finally, click the focus box, or click the screen, and the automatic exposure lock will exit, as shown in the following figure.

Extended data

Automatic exposure mode

1. Aperture-first exposure: Aperture-first exposure, also known as aperture-first automatic exposure, is generally represented by "A" on digital cameras. Photographers choose the appropriate aperture, and the digital phase automatically matches the appropriate shutter speed to achieve accurate exposure.

2. Shutter priority: Shutter priority, also known as shutter priority automatic exposure, is generally represented by S on digital cameras. The photographer chooses the appropriate shutter speed, and the digital phase automatically matches the appropriate aperture size to achieve accurate exposure.

3. programmed automatic exposure means that the aperture and shutter speed of the camera are automatically adjusted. It is convenient for quick photography and letting others take pictures. You can select all the shutter speeds and apertures available for the camera by dialing the dial or buttons, and basically you can get acceptable exposure, just like using aperture priority or shutter priority mode to some extent.

4. Manual mode: In manual mode, the shutter speed and aperture setting are controlled by the photographer himself. Usually, the camera will provide a graphic or digital display to remind you of the difference between the exposure setting and the recommended exposure. A plus sign indicates that the exposure is higher than the recommended value, and a minus sign indicates that the exposure is insufficient.