Product Highlights: E-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22 22% Lighter, 18% Smaller than Previous XA and Super ED Elements Nano AR Coating II and Fluorine Coating Four XD Linear AF Motors, Floating Focus Aperture De-Click and Lock Switches Zoom Smoothness Switch Dust and Moisture-Resistant Construction Eleven-Blade Circular Diaphragm