👉 Floodboards are a type of underwater film used in photography to produce beautiful watercolor effects. They consist of a layer of watercolor paint that is applied over a background of light-colored paper or other transparent material, creating a shimmering effect on the surface of the water. The term "floodboard" comes from the Greek word "flos," which means "fall." This term was used by early photographers to describe the technique of applying a layer of paint over a background that produces an
