The Tamron 11-20mm F/2.8 Di III-A2 RXD Lens for Sony E-mount APS-C mirrorless cameras is an ultra-wide-angle zoom lens designed for versatility in landscape, astrophotography, and architectural shooting. Its fast and constant f/2.8 aperture ensures enhanced low-light performance and precise depth of field control. The advanced optical design incorporates one XLD element, two LD elements, and two glass-molded aspherical elements to minimize chromatic aberrations and color fringing, delivering sharp, clear images with accurate colors. Tamron’s BBAR-G2 coating reduces flare and ghosting, improving contrast in backlit conditions. A responsive RXD stepping motor provides smooth, near-silent autofocus, perfect for both stills and video. The lens also excels in wide-angle macro photography, with a minimum focus distance of 5.9", offering unique perspectives. Built with moisture-resistant construction and a fluorine-coated front element, this lens is durable for outdoor use, while the rounded seven-blade diaphragm ensures beautiful bokeh for creative compositions.