Rafting the Grand Canyon with Joey Schusler and the Tamron 70-300mm F4.5-6.3 Di III RXD

The Tamron 70-300 F4.5-6.3 Di RXD III is a high-performance telephoto zoom lens for Sony's E-mount. Its compact design measures in at just 147mm (5.8") long, 77mm (3") in diameter and weighs only 545g (19.2oz), making it ideal for travel and everyday photography. The lens is constructed of 15 elements in 10 groups, including a low-dispersion element for minimizing aberrations. Autofocus is driven by Tamron's Rapid Extra-Silent Stepping Drive (RXD) motor technology. Other specifications include d...