For what purpose is a tripod primarily used?

A tripod is primarily used to stabilize the camera. Stability is crucial in video and photography, as any movement can result in shaky footage or blurry images. Using a tripod allows for steady framing and composition, particularly in situations where longer exposure times are required or when shooting video that necessitates smooth, stable shots. This stability is especially beneficial when shooting in low-light conditions or with telephoto lenses, where even slight movements can be magnified and lead to significant degradation in image quality.

While increasing shutter speed, capturing more light, and creating depth of field are important considerations in photography and videography, they pertain more to camera settings and techniques rather than the physical stability that a tripod provides. A tripod enhances the overall quality of the work by allowing for more meticulous control over the composition and technical aspects of the shot.