the 70-300mm f/4.5-6.3 Di III RXD Lens for Sony E from Tamron provides a popular telephoto zoom range for the full-frame Sony E-mount mirrorless cameras. This lens spans a useful short- to long-telephoto range and measures just 5.8" in length with a maximum diameter of 3", and it weighs just 1.2 pounds. It offers optical performance with aberration correction that delivers high image quality.