Tamron 70-300mm f/4.5-6.3 Di III RXD Lens for Sony E

The Tamron 70-300mm f/4.5-6.3 Di III RXD Lens for Sony E is a high-resolution telephoto zoom lens for full-frame Sony E-mount mirrorless cameras, turning the conventional concept of a telephoto lens on its head by packing a substantial zoom range into one of the smallest and lightest 70-300mm lenses available for full-frame mirrorless systems. It’s a versatile choice well suited to landscapes, sports and action, pets, wildlife, and portrait photography.

Optically, the lens is built from 15 elements in 10 groups, including one LD (Low Dispersion) element precisely arranged to suppress axial chromatic and other aberrations common in telephoto zoom lenses. Tamron’s BBAR (Broad-Band Anti-Reflection) coating helps control flare and ghosting for improved contrast, and a rounded 7-blade diaphragm contributes to a pleasing bokeh quality.

Autofocus is handled by Tamron’s RXD (Rapid eXtra-silent stepping Drive) stepping motor unit, delivering high-speed, high-precision, and remarkably quiet focusing performance that takes full advantage of in-camera features including Sony’s Fast Hybrid AF and Eye AF functions. The lens has a minimum focusing distance of 31.5 in. (0.8m) at the wide end, extending to 59.1 in. (1.5m) at telephoto, yielding a maximum magnification ratio of 1:9.4 (wide) or 1:5.1 (telephoto), giving it useful close-up flexibility in addition to standard telephoto shooting. The lens is also compatible with in-camera shading, chromatic aberration, and distortion correction functions, along with camera-based firmware updates.

Build quality includes moisture-resistant construction for added durability in varied outdoor conditions. The lens measures just 5.8 in. (148mm) in length with a maximum diameter of 3 in. (77mm), and weighs just 1.2 lb (545g), making it notably compact and portable for its telephoto reach. It accepts a 67mm filter thread.

As a full-frame E-mount lens, the Tamron 70-300mm f/4.5-6.3 Di III RXD delivers its full 34°21′-8°15′ angle of view on Sony full-frame bodies while remaining compatible with Sony APS-C E-mount cameras at an effective 105-450mm equivalent focal range.

Key Features
– 70-300mm telephoto zoom for Sony full-frame E-mount
– Maximum aperture f/4.5-6.3 (variable)
– 15 elements in 10 groups, including 1 LD element
– BBAR (Broad-Band Anti-Reflection) coating
– RXD stepping motor autofocus
– Compatible with Sony Fast Hybrid AF and Eye AF
– Rounded 7-blade diaphragm
– Minimum focusing distance of 31.5 in. (wide) / 59.1 in. (tele)
– Maximum magnification ratio of 1:9.4 (wide) / 1:5.1 (tele)
– Moisture-resistant construction
– In-camera lens correction and firmware update compatibility
– Compact, lightweight design (approximately 545g)
– 67mm filter thread
– Compatible with Sony full-frame and APS-C E-mount cameras (105-450mm equivalent on APS-C)