What setting is used for exposure lock?

Used in P\S\A mode

Automatic exposure lock AEL is an ideal tool for obtaining correct exposure under complex lighting conditions. It is very practical whether it is shooting portraits or landscapes.

For example, if we want to shoot a girl, the environment where she is standing is very complex, with street lights shining on her and a large neon light next to her. We can run in front of her, aim the camera at her face, and press AEL. Lock, then step back, focus, compose, and press the shutter to shoot, so that you can wait until the normal exposure value for the person's face.

Experience tells us that when taking photos of people, it is better to lock the exposure with the eyes of the person. If there are people in the snow scene, it is better to lock the exposure with the people. If there are no people, it is better to lock the exposure with the gray board or the back of one's own hand. , For blue sky and white clouds, it is better to lock the exposure with the sky color. For green willows on the lake, it is better to lock the exposure with the bright part of the tree or the reflective part of the water surface. For sunrise and sunset, it is better to lock the exposure with the clouds and sky next to the sun. But remember it’s best not to point the lens directly at the sun to avoid burning out the camera’s metering system due to too strong light. In actual operation, based on your own artistic aesthetics and experience, repeated practice and comparison, and flexible application, I will throw out some tips here. I also hope that everyone will get satisfactory works in their amateur photography art creation, and at the same time be happy physically and mentally.

Automatic exposure lock AEL (Automatic-ExposureLock), also known as metering lock ML (MeteringLock), is a method of moving the camera towards the scene under complex lighting conditions or when the subject only occupies a small part of the screen. Meter the appropriate part (such as a person's face, or an area with a reflectivity close to 18%, etc.) or measure other objects, then lock the exposure value and then recompose and compose the shot, so that you can get the best results even under very special light conditions. Accurate exposure.

Different cameras use different automatic exposure locking methods. Understanding the specific methods of camera automatic exposure locking is crucial for shooting, otherwise it will be impossible to use it effectively. There are three common forms of automatic exposure lock:

First, after pressing the shutter button halfway to start metering, press and hold the dedicated AEL button until the shutter button is fully pressed to release the shutter.

Second, as long as you press the dedicated AEL button, the metering result will be locked. After shooting, the lock will be automatically unlocked and returned to the normal metering state. For example, if you want to cancel the locked exposure before releasing the shutter, Just press the AEL button again.

Third, after half-pressing the shutter button to start metering, continue to hold the shutter button until the shutter button is fully pressed to release the shutter. Obviously, this is the most convenient way to lock automatic exposure and has been adopted by more and more cameras.

Auto exposure lock is very important. If the photographer is not good at using it, no matter how good the camera is, it can only be used as a point-and-shoot camera in terms of exposure, and it is difficult to guarantee the success rate of shooting.