Sony Ultra Wide Prime FE G 20mm F/1.8 (E-Mount) LEN1355

E-Mount Lens/Full-Frame Format Aperture Range: f/1.8 to f/22 Two Aspherical Elements Three Extra-Low Dispersion Elements Nano AR Coating and Fluorine Coating Dual XD Linear Motor AF System Linear Manual Focus Response Focus Hold Button, Focus Mode Switch Dust and Moisture Resistant Rounded 9-Blade Diaphragm