Explanation of aperture

This paper will discuss the definition and function of aperture in depth to help readers better understand the aperture in photography.

Annular brightness

Aperture is a kind of annular light, which can be used to describe the light at night and the halo in Buddhist paintings.

Light entry hole in photography

Aperture is a device to change the size of the light entrance hole and adjust the light entrance amount in the camera lens.

A series of signs

Aperture is a device that displays the aperture with a series of signs (such as F number) on the camera.