Comprising a flexible wide-angle range, the Tamron 17-28mm f/2.8 Di III RXD for Sony E is a versatile zoom for full-frame Sony E-mount mirrorless cameras. Covering ultra-wide to wide focal lengths, this lens is particularly suitable for landscape, astrophotography, and architectural shooting. Its bright f/2.8 constant maximum aperture complements this range and affords increased control over depth of field along with enhanced low-light performance. The optical design incorporates both XLD and LD elements, which produce a highly corrected image with reduced chromatic aberrations and color fringing for improved clarity and color accuracy. Individual elements also feature Tamron's BBAR coating, which suppresses flare and ghosting for greater contrast when working in backlit and harsh lighting conditions. Additionally, adding to the versatility, an RXD stepping motor enables quick, near-silent autofocus performance to suit stills and video, along with full-time manual focus override and a minimum focusing distance of 7.5". Suiting this lens's use in inclement weather conditions, it also features a moisture-resistant construction along with a fluorine-coated front element to protect against fingerprints and smudging.

This versatile wide-angle zoom is designed for full-frame Sony E-mount mirrorless cameras but can also be used with APS-C models, where it provides a 25.5-42mm equivalent focal length range. The bright constant f/2.8 maximum aperture affords consistent brightness throughout the zoom range and offers improved control over depth of field. XLD (eXtra Low Dispersion) and LD (Low Dispersion) elements greatly reduce color fringing and chromatic aberrations throughout the zoom range, realizing improved clarity and color accuracy. BBAR (Broad-Band Anti-Reflection) coating has been applied to individual elements to suppress internal reflections, flare, and ghosting, achieving greater contrast and color fidelity in strong lighting conditions. The RXD (Rapid eXtra-silent stepping Drive) autofocus motor delivers impressively quiet, quick, and smooth focusing performance, suitable for both stills and video applications. This focusing system also offers a minimum focusing distance of just 7.5" and a 1:5.2 maximum magnification for working with close-up subjects. Full-time manual focus override is also possible and it is compatible with Sony's Direct Manual Focus function or fine-tuned manual control. A moisture-resistant construction benefits this lens's use in inclement conditions, and a fluorine coating has also been applied to the front lens element to protect against dust, dirt, and smearing. Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.

Adding to the lens lineup, the Tamron 70-300mm f/4.5-6.3 Di III RXD for Sony E provides an extended telephoto zoom range, ideal for wildlife, sports, and portrait photography. This lens offers a flexible focal length range that spans from medium to long telephoto, making it a valuable addition for capturing distant subjects with clarity. The f/4.5-6.3 variable maximum aperture balances performance with a compact form factor, ensuring it remains lightweight and portable. The optical design includes a variety of special elements, including XLD and LD components, to reduce chromatic aberrations and enhance image sharpness across the zoom range. Like its counterparts, the lens features BBAR coating to minimize flare and ghosting, ensuring better contrast and color accuracy. The RXD stepping motor enables fast and quiet autofocus performance, while the minimum focusing distance of 3.1 feet and a 1:4.6 maximum magnification ratio facilitate close-up photography. Additionally, the lens is designed with a moisture-resistant construction and a fluorine-coated front element for durability in challenging environments.