Autofocus Assist Lamp

What is Autofocus Assist Lamp?

An autofocus assist lamp is a small light built into some cameras or external flash units that provides additional light to help the camera's autofocus system work more effectively in low light conditions.

When the camera's autofocus system detects low light conditions, it will emit a brief pulse of light from the autofocus assist lamp to illuminate the subject briefly. This helps the camera to focus more accurately and quickly, especially when the subject is moving or when the autofocus system is struggling to find contrast in the scene. Autofocus assist lamps are particularly useful in situations such as indoor photography or night-time photography, where the ambient light levels may be too low for the camera's autofocus system to work effectively. However, it is important to note that some autofocus assist lamps can be distracting to subjects, so it may be necessary to disable them in certain situations.