Pentax HD FA SDM AW 50mm F/1.4 (K-Mount) LEN1223

K-Mount Lens/Full-Frame Format Aperture Range: f/1.4 to f/16 1 Aspherical Element Anomalous Dispersion Aspherical Element Ultrasonic Motor SDM Aero Bright Coating II & HD Coating Front Element SP Coating Rounded 9-blade Diaphragm Weather Sealed