Tokina AT-X116PRDXN AT-X PRO DX 11-16mm Ultra-wide Angle Lens for Nikon This version is originally intended for sale outside the USA, No Warranty Aperture Range: f/2.8 to f/22 Designed for Cameras with APS-C Sensors Two Aspheric Lens Elements Two Super-Low Dispersion Lens Elements Multi-Layer Coating 77mm Filter Thread