This simple device allows you to diffuse and improve the quality of light given off by your camera"s pop-up flash. The holder slides into your camera"s hot shoe and the diffuser flips down in front of your pop-up flash. The result is a soft, diffused and slightly larger light source that will give a more pleasant quality of light to your subject than the camera"s flash alone. Compatibility: Canon EOS: D30, D60, 10D, 20D, 30D, 40D, Rebel XT, 300D, XTi and PS Pro 1 Nikon: D40, D40x, D50, D70, D70s, D80, D100 and D200 Pentax: *istDS, K10D, K100D and K100DS Olympus: E400, E410 and E500 Also fits many similar DSLR cameras from Fuji, Kodak, Panasonic and Samsung, as well as many film SLR cameras with pop-up flashes.