The Tamron 28-75mm f/2.8 Di III VXD G2 Lens for Nikon Z features an updated optical design and a refined focusing system. With a versatile wide-to portrait-length range as well as a bright f/2.8 maximum aperture.Higher resolutions, as well as improved sharpness, is achieved due to revamped optics, which is an impressive update from the previous generation. Additionally, the focussing system is replaced with a VXD mechanism, capable of achieving faster, quieter, and more precise focusing ideal for stills as well as video applications.As an updated version, the Tamron 28-75mm f/2.8 Di III VXD G2 Lens for Nikon Z features a closer minimum focusing distance of 18cm, and an improved connector port streamlining the process of working with Tamron software to adjust lens settings.