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Black cylindrical zoom lens with silver accent rings and Fujifilm X mount

Tamron

Tamron 17-70mm F/2.8 Di III-A RXD for Fujifilm X-mount camera lens

SKU CH-EXE6-TQR7X

A fast 17-70mm f/2.8 zoom covering 25.5-105mm equivalent with 4.1x range, 16 elements in 12 groups, close focus to 7.5cm at wide end and 15.4cm at telephoto.

  • Product typeZoom Lens
  • Constant f/2.8 aperture across the full 4.1x zoom range
  • World-first 17-70mm focal range for APS-C mirrorless cameras
  • 16 elements in 12 groups with two GM aspherical and one hybrid aspherical lens elements
  • Close focus to 7.5 cm at 17 mm and 15.4 cm at 70 mm for detailed near-subject shots
  • Moisture-resistant construction with fluorine coating protects the front element

Versatile APS-C zoom for Fujifilm X-mount

The Tamron 17-70mm F/2.8 Di III-A RXD is a high-speed standard zoom lens designed for APS-C Fujifilm mirrorless cameras. It covers a 17-70mm focal range with a constant f/2.8 aperture, giving a 35mm-equivalent view of 25.5-105mm. This 4.1x zoom ratio handles wide-angle landscapes through to short-telephoto portraits in a single lens.

Constant f/2.8 aperture across the zoom range

The lens maintains a bright f/2.8 maximum aperture from 17mm to 70mm, so exposure settings stay consistent while zooming. This constant aperture is the key specification for shooters who need reliable low-light performance and shallow depth of field throughout the entire focal range without adjusting ISO or shutter speed.

Quiet stepping motor and vibration compensation

The RXD stepping motor provides fast, near-silent autofocus suitable for both stills and video work where audio pickup matters. Built-in VC (Vibration Compensation) works with compatible camera bodies to stabilise handheld shooting at slower shutter speeds. Moisture-resistant construction and a fluorine coating on the front element protect the optics during extended outdoor sessions.

How it compares

Measured against everything we stock in Interchangeable Camera Lenses, at today’s prices. Recalculated every night.

Price $518.99
Typical for this category: the median of 2,570 items is $546.49.

Specifications

Product
Brand nameTAMRON
Product typeZoom Lens

Questions about this item

What does the 17-70mm zoom range cover on an APS-C body?

It covers a 35mm-equivalent range of 25.5 to 105mm, spanning wide-angle to short telephoto for landscapes and portraits.

What does the constant f/2.8 aperture mean for exposure across the zoom?

The aperture stays at f/2.8 from 17mm to 70mm, so exposure settings remain consistent while zooming without losing light.

How close can I focus at the wide and telephoto ends?

Minimum focus distance is 7.5 inches at 17mm and 15.4 inches at 70mm, allowing close-up work throughout the range.

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