Light painting is a photographic technique that involves using a light source to create images in a dark environment. By moving the light source while taking a long exposure photograph, artists can "paint" with light, capturing trails and shapes that appear in the final image. Common tools for light painting include flashlights, glow sticks, and even smartphone screens. This technique allows for creative expression and experimentation, as artists can manipulate the light in various ways. Cameras with manual settings are typically used to control exposure time, enabling the capture of intricate designs and patterns that would be invisible to the naked eye in normal lighting conditions.