Compact Telephoto Zoom Lens The 70-300mm f/4.5-6.3 Di III RXD Lens for Nikon Z from Tamron is the perfect choice for full-frame Nikon Z-mount mirrorless cameras. This compact lens measures just 14.8cm in length and has a maximum diameter of 7cm, weighing only 0.545 kg. It offers optical performance with aberration correction for high image quality, and Tamron's RXD stepping motor unit provides high-speed, high-precision, and quiet operation. It also takes full advantage of in-camera features such as Sony's Fast Hybrid AF and Eye AF functions. This highly practical telephoto zoom lens is ideal for a range of shooting styles including sports, wildlife, portraits, and more. Versatile telephoto zoom is designed for full-frame Nikon Z-mount mirrorless cameras and can also be used with.