Fast, Wide-Angle To Medium Telephoto AF-S Zoom Lens Optimized For Edge-To-Edge Sharpness On Both The Nikon FX (23.9 x 36mm) And DX Format Image Sensors/ 77mm Filter Size/ Three Extra-Low Dispersion (ED) Elements And PGM Aspherical Lenses/ Silent Wave Motor (SWM)/ Focus As Close As 14.9 Inches/ M/A Focus Mode Switch/ Nano Crystal Coat/ Internal Focus (IF)/ Black Finish