Tamron 17-70mm F/2.8 Di III-A RXD for APS-C Sony Mirrorless Cameras

SKU: AFB070S-700

Starting at $64/mo

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In the box

Tamron 17-70mm F/2.8 Di III-A RXD for APS-C Sony Mirrorless Cameras

  • Tamron 17-70mm f/2.8 Di III-A VC RXD for APS-C Sony Mirrorless Cameras
  • Flower-Shaped Hood
  • Lens Caps

From The Wavelength Blog Read more

Tamron 17-70mm F/2.8 Di III-A RXD for APS-C Sony Mirrorless Cameras

A newest edition to Tamron's high-speed zoom lenses, this 17-70mm f/2.8 Lens is designed for mirrorless cameras with APS-C size sensors. It offers a maximum aperture of f/2.8 across the entire 4.1x zoom ratio covering focal range from 17-70mm. It offers a full-frame equivalent focal range of 25.5-105mm. It is an ideal companion for everyday use delivering superb optical performance. This lightweight and compact lens comes equipped with Tamron's VC (Vibration Compensation) mechanism that leverages AI technology when shooting video, minimizing camera shake.

Outstanding Optical Performance

The optical construction of 17-70mm f/2.8 Lens uses 16 elements in 12 groups. It comprises of two GM (Glass Molded Aspherical) lens elements and one hybrid aspherical lens elements that are precisely arranged to maintain edge to edge resolution. 

Upgraded VC with AI for Video Shooting

This 17-70mm f/2.8 Lens features Tamron's proprietary VC mechanism. It utilizes sophisticated algorithms with a dedicated, independently operating MPU that combine to compensate for vibration due to camera shake when shooting handheld. This feature is available when used with both cameras with or without built-in image stabilization. When shooting video, the image stabilization performance is improved thanks to AI technology.

High Performance Autofocus System

This zoom lens comes with an RXD (Rapid eXtra-silent stepping Drive) stepping motor unit that aids in quick, smooth focusing. It uses an actuator to precisely control the rotational angle of the motor, allowing it to directly drive the focusing lens without passing through a reduction gear. When paired with a sensor that precisely detects the position of the lens enables high-speed and accurate AF, which is ideal when shooting continually moving subjects or recording video.

Close Focusing of 7.5 Inches at Wide-Angle End

The 17-70mm f/2.8 zoom offers a close focus distance of up to 7.5 inches. With a 15.4-inch MOD at the 70mm telephoto end, be rest assured to enjoy compelling close-up shots

Highly Portable Compact Design

The 17-70mm f/2.8 Lens measures 4.7 inches in length and 74.6mm in maximum diameter and weighs only 18.5 oz. It accepts filter measuring 67mm in diameter.


Maximum Aperturef/2.8
Minimum Aperturef/22
Focal Length17-70mm
Maximum Magnification0.21x (Wide) / 0.19x (Tele)
Angle of view79-degree 55 feet to 23-degree (for APS-C frame mirrorless format)
Minimum Focus Distance7.5-inch (Wide), 15.4-inch (Tele)
Focus TypeAuto
Image StabilizationYes
Diaphragm Blades9 (circular diaphragm)
Zoom Focal Length17-70mm
Lens FormatAPS-C Sensors
Lens TypeStandard Zoom


Lens MountSony E-Mount



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