Sony E-Mount/Full-Frame Format/ 11-20mm Focal Length/ F2.8 Maximum Aperture/ 12 Elements In 10 Groups Optical Construction/ 5.3 " (WIDE), 9.4 (TELE) Minimum Object Distance/ 1:4 (WIDE)/1:7.6 (TELE) Maximum Magnification Ratio/ 67mm Filter Size/ 73mm Maximum Diameter/ 7 (Circular Diaphragm) Aperture Blades/ F16 Minimum Aperture/ RXD (Rapid eXtra-Silent Stepping Drive)/ Moisture-Resistant Construction And Fluorine Coating/ Black Finish