Tamron 20-40mm f/2.8 Di III VXD - Lens review and specs

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Sony E Nikon Z Standard Zoom full-frame 2022

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Compare with

20-40mm

Focal length

f/2.8

Max aperture

365 g

Weight

14mm35mm85mm200mm600mm

▲ 20-40mm

Max aperture

f/1.8

f/2.8

f/5.6

Constant Aperture

Zoom Ratio: 2x
Zoom Method: external

Focal length28 mm

20 mm40 mm

Aperturef/2.8

f/2.8f/22

Near focus4' 4"

Far focus5' 11"

Total DOF1' 7"

Hyperfocal31' 11"

Subject distance5' 0"

Focal length28 mm

Aperturef/2.8

SensorFull Frame

Illustrative scene preview based on this lens's focal length, aperture, and sensor coverage.

This preview uses 28mm, f/2.8, and Full Frame. Subject distance is estimated to keep lens previews comparable.

Min aperture: f/22
Diaphragm blades: 9

Optics

Optical construction: 12 elements in 11 groups
Special elements: 4 LD, 2 GM aspherical
Coatings: BBAR-G2 Coating, Fluorine coating

Focusing

Minimum focus: 17 cm
Max magnification: 0.26×
AF motor: VXD

Physical

Weight: 365 g
Dimensions: ⌀74mm × 87mm
Filter thread: 67 mm
Hood included: HA062
Color: Black

Recommended Use

Ideal for: Architecture, Landscapes, Macro, Portraits, Street, Travel, Vlogging, Walkaround / Daily

Release year: 2022
Announced: Aug 18, 2022
Approx price: $699 USD
Optical correction & RAW development: NDPix Photo Editor

The best

Ultra-wide 20-40mm f/2.8 fast standard zoom weighing just 365g

Also

VXD linear AF, 0.17m close-up capability, and Sony E / Nikon Z mounts

Summary

The Tamron 20-40mm f/2.8 Di III VXD (Model A062) is an ultra-compact, fast-aperture standard zoom lens for full-frame mirrorless cameras, designed to deliver versatile coverage starting from an ultra-wide 20mm up to a classic standard 40mm with a constant f/2.8 aperture. Engineered with outstanding portability in mind, it weighs only 365g in Sony E-mount (and 380g in Nikon Z) with a length of just 87mm, establishing itself as one of the lightest and most manageable f/2.8 zooms in its class.

Its optical formulation features 12 elements in 11 groups, incorporating four Low Dispersion (LD) elements and two Glass Molded Aspherical (GM) elements, paired with Tamron's proprietary BBAR-G2 coating and a protective front fluorine coating. Autofocus is driven by the rapid, quiet VXD (Voice-coil eXtreme-torque Drive) linear motor mechanism, delivering precise subject tracking for both high-speed stills and video shooting or vlogging workflows.

Creative close-up capabilities are highlighted by a minimum object distance of only 0.17m at 20mm, providing a 1:3.8 maximum reproduction ratio for dynamic wide-angle macro perspectives. Built with moisture-resistant construction, a uniform 67mm filter thread, and an onboard USB-C Connector Port for custom function mapping via the Tamron Lens Utility software, it natively supports both Sony E and Nikon Z mirrorless platforms.

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Pros & Cons

Pros

Constant f/2.8 aperture in an exceptionally lightweight barrel (365g Sony E / 380g Nikon Z)
Unique ultra-wide coverage starting at 20mm
Fast, quiet, and precise VXD linear motor autofocus for stills and video
Close-up 0.17m minimum focus distance with 1:3.8 magnification at 20mm
Built-in USB-C Connector Port for Tamron Lens Utility customization