The TAMRON 11-20mm F2.8 ultra wide-angle zoom lens features a constant aperture of F2.8. Even with its fast F2.8 aperture, the lens is very small and feels perfectly balanced on a compact APS-C mirrorless camera body. It's the ideal lens for everyday use with its full-frame equivalent zoom range of 16.5-30mm. And at the 11mm ultra wide-angle end, the lens provides stunning close-range shooting performance, with its MOD of 5.9”/ 0.15m and a maximum magnification ratio of 1:4. This feature invites creative wide-angle macro shooting that exploits the unique perspective that only ultra wide-angle lenses can provide. Additionally, the quiet RXD (Rapid eXtra-silent stepping Drive) stepping motor AF drive is perfect for both still and video use. This zoom lens is protected by Moisture-Resistant Construction and durable Fluorine Coating that provide extra protection when shooting outdoors. The compact size, fast F2.8 aperture, practical zoom range and superb image quality make the 11-20mm zoom an ideal choice for travel, landscape, street, and general photography.