This is a Professional High Definition Super Wide Angle Fisheye lens 0.40x. This lens is specially designed for the high quality digital cameras and camcorders which will effectively increase your camera's versatility without loss of original picture quality. The 0.40x Wide-Angle Converter attaches to the front of your zoom lens. When you deal with wide angle lenses remember that the smaller the number the wider the angle. For instance a 0.18x is considered a super fisheye lens (notorious bubble effect) and a 0.5x is considered just a wide angle lens. This particular lens 0.40x has the best of both lenses so is considered both a Super Wide Angle Lens with soft fisheye effect. The wide angle portion of the lens can be separated from the macro portion so you can use this lens for macro photography to capture details on small collectible items, little bugs and every macro shot you don't want to miss. Special Element Frame Premium Rimmed Glass Infrared Compatible Include Protective Lens Case Digital Multi Coated