Nikon WC-E67 Wide-Angle Converter Requires UR-E20 Adapter Ring 5 elements in 5 group lens construction assures highest picture quality Full aperture metering with compatible cameras Autofocusing possible when used with D1, D1X, D2X, D1H, D100, D70, D2H, F6, F5, F100, N80, N75 and N65 AF SLR Cameras Nikon Integrated Coating reduces flare and ghosting Focal length - 1.4x