tamron 11-20mm f/2.8 di iii-a rxd features

Fast-aperture ultra wide-angle zoom lens | Compact and lightweight | Outstanding optical performance | MOD of 0.15m (5.9in)and maximum magnification ratio of 1:4 | High performance autofocus RXD stepping motor for both still and video use

Sony E-Mount / ASP-C Format | 17-30mm (35mm Equivalent) | Aperture Range: f/2.8 to f/16 | 1x XLD, 2x GM Asph., and 2x LD Elements | BBAR-G2 Lens Coating | Rapid eXtra Silent Stepping Drive Motor | Weather-Sealed Construction | Rounded 7-Blade Diaphragm | 67mm Front Filter Size | Petal-Type Lens Hood Included | Limited 2+2 Year Warranty