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Friday, May 29, 2020

Tamron 70-180mm f / 2.8 Di III VXD offers lightweight telephoto lenses to Sony users

Tamron’s latest fast zoom telephoto lens for Sony mirrorless cameras goes on sale on May 14. The development of the Tamron 70-180mm f / 2.8 Di III VX was first announced in October last year and will complete a trio of f / 2.8 zooms with a constant fast aperture for the popular E Sony mount.

The new telephoto zoom lens offers a shorter focal range than the classic 70-200mm f / 2.8 which is traditionally used by professionals and enthusiasts – but the reduced 70-180mm zoom range has allowed Tamron to achieve a 45% smaller lens than I would otherwise have been.

As such, the lens is the smallest and lightest f / 2.8 telephoto lens in its class, measuring only 149mm in length (when shot down with a 70mm setting) and weighing a meager 810g.

The 70-180mm f / 2.8 features Tamron’s first linear AF motor drive mechanism, VXD (“Voice-coil eXtreme-torque Drive”), which the manufacturer promises is not only fast and silent, but “maintains the position accuracy down to 0.005 mm (0.0002 in), less than a tenth the width of a human hair! ”

Developed with the concept of “making wide-angle zoom lenses intuitive”, the 70-180mm f / 2.8 offers users a portrait and telephoto option to complement the current Wide angle zoom Tamron 17-28mm f / 2.8 RXD and standard zoom 28-75mm f / 2.8 RXD.

Tamron 70-180mm f / 2.8 Di III VXD completes Tamron’s f / 2.8 zoom trinity for E Sony mount (Credit image: Tamron)

70-180mm F / 2.8 has an optical construction of 19 elements in 14 groups. Includes a total of six combined XLD (eXtra Low Dispersion) and LD (Low Dispersion) lens elements and three GM (Glass Molded Aspherical) and hybrid aspherical lens elements. The lens uses the same 67mm lenses as the other two zooms in its family (including the first 20mm, 24mm and 35mm recent).

Other features include moisture resistant construction for added weather protection and fluorine coating on the front element for easy maintenance. Furthermore, the 70-180mm f / 2.8 is said to be fully compatible with various Sony-specific features, including Fast Hybrid AF and Eye AF (presumably simplified since Sony is a minor shareholder of Tamron).

The minimum focus during normal operation is 0.85 m (33.5 inches), but when switching to manual focus this decreases to only 0.27 m (10.6 inches), offering a magnification of 1 : 2 for extreme close-ups. This high magnification mode offers “Sweet Spot” style images in which only the central part of the frame is focused, with the edges noticeably blurred.

specifications

Tamron 70-180mm f / 2.8 Di III VXD has a weatherproof structure (Credit image: Tamron)

Model number: A056
assemble:
Sony E
Whole frame: Yup
Image stabilization: no
Water resistance: Yup
Lens construction: 19 elements in 14 groups
Point of view: 4 ° 21′-13 ° 42 ‘
Diaphragm blades: 9
Minimum opening: f / 22
Minimum focusing distance (manual focus): 0.27m (W) 0.85m (T)
Closest focusing distance (AF): 0.85m
Maximum magnification ratio: 0.5x (with manual focus) 0.22x (in AF)
Filter size: 67mm
Dimensions: 81x149mm
Weight: 810G

Prices and availability

The Tamron 70-180mm f / 2.8 Di III VXD will go on sale May 16 and will sell for $ 1,199 / £ 1,349.

Book the Tamron 70-180mm f / 2.8 Di III VXD on BH Photo

Read more:
The best Sony lenses in 2020

The best 70-200mm telephoto lenses for 2020

The best 150-600mm lenses

Sony A7 vs A7 II vs A7 III: how do they compare?

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