• Tamron lens for use with APS-C Canon mirrorless camera (RF-S)
• 11-20mm focal range, 17.6-32mm full-frame equivalent
• Compact & lightweight design
• Fast F2.8 aperture
• Capable of shooting macro at 11mm
• Moisture-resistant construction
• Fluorine coating
• Fast, quiet autofocus, suitable for both stills & video
• Features a connecting port for updating firmware

The Tamron 11-20mm F2.8 is an ultra-wide-angle zoom lens with an aperture of F2.8 across the entire zoom range. It's compact, lightweight and practical. You can enjoy the unique and powerful world of ultra-wide-angle photography at the 11mm end (the full-frame equivalent of 16.5mm). Ideal for regular use, the 20mm focal length (the full-frame equivalent of 30mm) is well suited for casual snapshot photography such as street shooting. 

The Tamron 11-20mm F2.8 is only 86.2mm in length and weighs just 335g. When used with an APS-C mirrorless camera body, you can enjoy a responsive image capture system without being hindered by the size or weight of the lens. It provides a comfortable user experience for still photography and for shooting video using a small tripod or gimbal stabilizer.

The Tamron 11-20mm F2.8 construction includes 12 elements in 10 groups. Two precisely located GM (Glass Moulded Aspherical) lens elements assure high resolution across the entire image, from edge to edge. In addition, the 11-20mm F2.8 incorporates one XLD (eXtra Low Dispersion) and two LD (Low Dispersion) lens elements to produce sharp images with optical aberrations highly corrected. It also features the BBAR-G2 (Broad-Band Anti-Reflection Generation 2) Coating that suppresses ghosting and flare to a minimum level and reveals the minute details of objects even when the subject is backlit. 

The Tamron 11-20mm F2.8 lens boasts a Minimum Object Distance of 15cm at the 11mm focal length and 24cm at 20mm. This results a versatile close-range shooting performance. At the widest 11mm setting it has an astonishing maximum magnification ratio of 1:4 that enables wide-angle macro photography that exploits the perspective unique to ultra-wide-angle lenses, while also leveraging the expressive bokeh provided by the fast, bright maximum aperture of this lens.

RXD (Rapid eXtra-silent stepping Drive) uses an actuator to precisely control the rotational angle of the motor, allowing it to directly drive the focusing lens without passing through a reduction gear. A sensor that precisely detects the position of the lens enables high-speed and accurate AF, which is ideal when shooting continually moving subjects or recording video.