The difference between wide viewing angle and full viewing angle

Different references, different origins, and different emphases.

Refers to the viewing angle in all directions, up, down, left, and right. Full viewing angle means good in all directions, that is, each angle can reach 90 degrees, but wide viewing angle can only be said to be large but not 90 degrees.

Wide angle refers to a wide-angle lens for photography. A wide-angle lens is a type of lens with a wider angle of view and a shorter focal length than ordinary lenses. It is often used to shoot objects with a large area.