Nikon SJ-1 Color Filter Set allows Speedlight Flash output color correction when using when tungsten and fluorescent lights, as well as special effects. When used and selecting the camera's white balance setting to tungsten, the flash output is converted to match the rest of the scene. The blue, yellow, red and other amber filters can be used for creative lighting control, or to add dramatic colors to an image. This relatively noticeable when more than one flash is used. The filter set is optimized for use with DSLR.