Tokina ATXAF720FXN 70-200mm f/4 Pro FX VCM-S Lens for Nikon Nikon F-Mount. Aperture Range: f/4 to f/22 For FX or DX DSLR Cameras. 105-300mm (35mm Equivalent on DX Format) Three Super-Low Dispersion Elements. Multi-Layer Coated Optics VCM Image Stabilization. Ring-Type Ultrasonic AF Motor Internal Focusing Mechanism. Nine-Blade Diaphragm