The Tamron 28-200mm f/2.8-5.6 Di III RXD Lens is an innovative all-in-one lens that provides a superb performance, and wide-to-super-tele zoom. The lens has been carefully designed for the Sony full-frame mirrorless cameras and ensure the highest level of performance across the entire zoom range and at the same time creating extraordinary image quality.

The Tamron 28-200mm lens for Sony E provides a 42-300mm equivalent focal length range; a bright f/2.8-5.6 maximum aperture which is ideal for performing in low-light conditions; certain specialised elements that's put into place to ensure that the lens achieves high sharpness and clarity wherever you find yourself photographing; a seven-blade diaphragm that contributes to pleasing bokeh quality; a zoom lock switch to keep the lens in its retracted position when not in use; and it features a moisture-resistant construction which performs well in inclement conditions, and a fluorine coating that's been applied to the front lens element to protect it against dust, dirt, and smearing.
The lens incorporates a variety of elements that include: LD (Low Dispersion) and XLD (eXtra Low Dispersion) which is of great help as it suppresses chromatic aberrations, and making it possible to achieve high image quality from edge to edge; and it incorporates and AF drive system that's powered by the RXD (Rapid eXtra-silent stepping Drive) stepping motor to deliver extremely high-speed, high precision performance.