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Rent NowNOTE: This lens is used and shows heavy wear: it has major scuffs on the mount and scuffs across the body, along with heavy wear on the zoom ring and focus ring. Does not affect functionality.
The Tamron 20-40mm f/2.8 Di III VXD is a compact, fast-aperture wide-angle zoom designed for Sony E-mount full-frame mirrorless cameras, giving photographers a constant f/2.8 aperture in a lightweight package suited to travel, landscape, event, and video work. It fills a niche between Tamron’s wider 17-28mm and standard 28-75mm f/2.8 zooms, offering a wide-to-normal range aimed at photographers who want a versatile everyday wide-angle option without stepping up to a larger, heavier lens.
Optically, the lens covers a 20-40mm focal range with a constant f/2.8 maximum aperture throughout the zoom range, simplifying exposure control compared to variable-aperture designs. This range spans true wide-angle framing at 20mm through a more standard, moderately wide 40mm, making it useful for everything from expansive landscapes and architecture to environmental portraits and vlogging-style video work. A rounded aperture diaphragm contributes to smooth background rendering when shooting wide open, particularly at the longer end of the zoom range.
Autofocus is handled by Tamron’s VXD (Voice-coil eXtreme-torque Drive) linear motor, a fast, quiet, and precise focusing mechanism well suited to both stills and video, including smooth focus transitions during movie recording. The lens also offers a minimum focusing distance short enough to enable strong close-up capability at the wide end of the zoom, letting photographers get dramatically close to subjects for creative wide-angle perspectives.
Build quality includes moisture-resistant construction to help protect against light rain and dust during outdoor and on-location shooting, along with a fluorine coating on the front element to resist smudges, fingerprints, and moisture, making the lens easier to clean and more durable in varied shooting conditions. The lens maintains a compact, lightweight design relative to its constant f/2.8 aperture and zoom range, keeping it manageable for handheld shooting and travel.
As a Di III-series lens, it’s designed specifically for full-frame mirrorless systems, delivering its full angle of view on Sony E-mount full-frame bodies while remaining compatible with Sony APS-C E-mount cameras at a narrower effective field of view.
Key Features
– 20-40mm constant f/2.8 wide-angle zoom for Sony E-mount
– VXD linear motor autofocus for fast, quiet, precise focusing
– Moisture-resistant construction
– Fluorine coating on front element
– Compact, lightweight design for a constant-aperture zoom
– Strong close-focusing capability at the wide end
– Compatible with Sony full-frame and APS-C E-mount cameras
