Continuous f2.8 throughout the zoom range

No barrel extension

Weighs just 810g

Minimum Focusing Distance of 27cm

VXD system (Voice-coil eXtreme-torque Drive)

Moisture-resistant construction

Hydrophobic Fluorine Coating

Fully compatible with various camera-specific features, including Fast Hybrid AF and Eye AF

67mm filter diameter

The lens offers a fast aperture of f2.8 throughout its versatile 70-180mm zoom-range while remaining compact and lightweight.

Weighing only 810g and measuring just 149mm (at 70mm setting) this
lens has been designed to work perfectly with the supreme compactness of
today's generation of mirrorless cameras.

High-speed and high-precision autofocus performance

Tamron has developed the VXD (Voice-coil eXtreme-torque Drive) their
first-ever linear motor AF drive focus mechanism, especially for the
70-180mm f2.8 lens. Delivering fast and precise AF performance, the
drive also maintains positional accuracy down to 0.005mm, less than
one-tenth the width of a human hair!

A floating system that uses two high-speed, high-precision VXD units
aids in producing clear and beautiful images of all objects from near to
far and at the same time helps reduce size and weight.

Perfect for both still images and video

The enhanced, highly-responsive focus features of the 70-180mm f2.8
provide users with a whisper-quiet, high-precision shooting experience
that is perfect for both still images as well as video.

The lens is constructed of 19 elements in 14 groups to correct
chromatic aberration and maintain very high-resolution performance from
edge-to-edge. Ghosting and flaring are minimised thanks to the BBAR-G2
(Broad-Band Anti-Reflection Generation 2) coating to produce stunning,
clear images with brilliant, sharp subject detail.

The Tamron 70-180mm f2.8 Di III VXD Zoom Lens features the same 67mm
filter diameter as the 17-28mm f2.8 and 28-75mm f2.8 allowing you to use
the same filters and lens caps across the range of lenses.

The lens has a MOD of 0.85m throughout the entire zoom range and is
capable of shooting up to 0.27m when at the 70mm focal length and manual
focus (MF) is set on the camera.

The lens is resistant to fingerprints and dirt thanks to its Moisture-Resistant Construction and hydrophobic Fluorine Coating.

The lens is compatible with many of the advanced features specific to certain mirrorless cameras including:

Fast Hybrid AF

Eye AF

Direct Manual Focus (DMF)

In-camera lens correction (shading, chromatic aberration, distortion)

Camera-based lens unit firmware updates