aperture priority

Aperture priority is a photography mode that allows the photographer to set the lens opening, or aperture, while the camera automatically adjusts the shutter speed for proper exposure. The aperture controls the amount of light entering the camera and affects depth of field, which determines how much of the image is in focus. A wider aperture (smaller f-number) creates a blurred background, emphasizing the subject, while a narrower aperture (larger f-number) keeps more of the scene in focus. This mode is useful for managing creative effects while ensuring well-exposed photographs.