Featuring an updated optical design and refined focusing system, the Tamron 28-75mm f/2.8 Di III VXD G2 is a E-mount zoom offering a versatile wide-to-portrait-length range and bright f/2.8 maximum aperture. Revamped optics yield higher resolution and improved sharpness over the previous generation and the focusing system has been replaced with a VXD (Voice-coil eXtreme-torque Drive) mechanism that achieves faster, more precise performance to suit both stills and video applications. | Tamron | | 28-75mm f/2.8 Di III VXD G2 Lens for Sony E with Advanced Accessory and Travel Bundle | 28-75mm Lens E Mount | Black | Best Buy