What happens to the angle of view as the focal length decreases?

As the focal length of a lens decreases, the angle of view widens. This means that a lens with a shorter focal length can capture a larger field of vision, allowing more of the scene to be included in the frame. A wide-angle lens, which typically has a short focal length, is designed to create a broader perspective, making it useful for capturing landscapes, large groups of people, or confined spaces.

This widening of the angle of view can result in a more immersive experience for viewers, as it allows more context to be seen in a single shot. This characteristic of wide-angle lenses also contributes to the dramatic effect often sought in certain types of cinematography and photography, where capturing a sense of vastness or the inclusion of surrounding elements is desirable.