Tokina ATXAF107DXN 10-17mm f/3.5-4.5 AF DX Fisheye Lens for Nikon Digital SLR, Black Fisheye Zoom Lens. 180 Degree Diagonal Field of View Aperture Range: f/3.5-22 Water Repellent Coating Compatible with APS-C-Sized Sensors Built-In Lens Hood