In photography and videography an aperture determines the amount of light entering the lens and reaching the camera sensor. In simple terms, it refers to the size of the opening in the lens that allows light to pass through and reach the camera’s sensor.
An aperture controls the depth of field, which is the area in the image that appears sharp and in focus. Aperture also affects the exposure, which is the amount of light captured by the camera’s sensor. Aperture is measured in f-stops and is expressed as a fraction, such as f/1.4 or f/5.6. The smaller the f-stop number, the larger the aperture, and vice versa.
An aperture of f/1.4 allows more light to enter the camera and creates a shallow depth of field, while an aperture of f/22 lets in less light and creates a larger depth of field. Photographers and videographers use aperture to control the amount of light entering the camera and to control the depth of field in their images.
