The best way to use a Wag Flag (a collapsible, portable flag/diffusion system) in cinematography is to take advantage of its quick setup (1–2 minutes) and portability to instantly control light—such as blocking sunlight, creating negative fill, or softening sources—using only a single C-stand. Because they are designed to be "slap-on" solutions, they are perfect for fast-paced, on-location shooting, small crews, and travel.