Camera Techniques; Aperture

Aperture refers to the size of the hole that lets in light through the lens when taking a picture or filming. The smaller the hole, the less light is let in. Each aperture setting has an 'F number' which refers to the amount of light being let in. Aperture also controls the depth of field which is the amount of sharpness behind and in front of the subject focus. The smaller the aperture the less sharpness in front and behind the subject focus. A larger aperture gives a greater amount of sharpness. Aperture is important for producing clarity and sharpness in film, it helps to enhance the focal point and emphasise certain aspects of a shot.