70-300mm f/4.5-6.3 Di III RXD - Sony FE Fit

The Tamron 70-300mm f/4.5-6.3 Di III RXD is a telephoto zoom lens designed for full-frame Sony E-mount mirrorless cameras, offering a versatile focal range suitable for sports, wildlife, and portrait photography. The lens features a compact and lightweight design at 5.8 inches in length and 1.2 pounds, making it practical for extended shooting sessions. Its RXD stepping motor delivers fast, precise, and quiet autofocus operation while supporting Sony's Fast Hybrid AF and Eye AF functions, along with direct manual focus capability.

The optical design comprises 15 elements in 10 groups, including one low-dispersion element that effectively suppresses chromatic aberrations and other optical distortions common in telephoto zooms. The lens has a minimum focusing distance of 31.5 inches and features a rounded seven-blade diaphragm for pleasing bokeh quality. Its aluminum-magnesium alloy construction with moisture-resistant design enables reliable performance in challenging weather conditions, and it is compatible with Sony in-camera lens correction functions for vignetting, chromatic aberration, and distortion.