Tamron 70-300mm F/4.5-6.3 Di III RXD Lens (Sony E-Mount) with Accessories BundleTamron 70 300mm F 4. 5 6. 3 Di III RXD Lens for Full Frame and APS C Sony Mirrorless Cameras (Model A047) The 70 300mm F 4. 5 6. 3 Di III RXD (Model A047) is a telephoto zoom lens for Sony full frame E mount mirrorless cameras, also compatible with APS C models. Compact and lightweight at just 5. 8 inches long, 77mm maximum diameter, and 19. 2 oz., it is designed for portability and everyday use. On APS C cameras, it provides a 105450mm equivalent