The Tamron 28-75mm F/2.8 Di III VXD G2 (model A063) is a fast standard zoom lens designed for Sony mirrorless full-frame cameras. This lens features a revised optical system while maintaining a compact size, similar to its predecessor. It incorporates LD (Low Dispersion) and GM (Glass Molded Aspherical) lens elements to minimize aberrations, resulting in improved resolution and sharper images. The 2nd generation Tamron 28-75mm f/2.8 Di III VXD G2 Lens for Sony E offers better optics, faster focusing, and a sleek new design, making it an enhancement over the previous popular model. Optimized for Sony E-Mount full-frame mirrorless cameras, this lens is packed with optical and build improvements to enhance your photography experience. It maintains the same fast-aperture as the highly popular 28-75mm F/2.8 Di III RXD but features a completely redesigned optical system for brighter, sharper images.