Exposure lock

A camera feature that causes the camera’s autofocus lens to lock the subject into sharp focus while the exposure meter measures light and locks in the exposure. As long as the exposure is locked, the settings will not change even if you move the camera. This is also referred to pre-focusing. Exposure lock is usually activated by applying slight pressure to the shutter release button – not enough to activate the shutter and take a picture, but enough that you feel the button move and the camera respond. Pressing the shutter release the rest of the way causes the camera to take the picture. Note: This behavior is governed by configuration settings that the user can change in the camera settings.

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