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Tamron Announces Fast 17-70mm X-Mount Zoom Share This on LinkedIn   Tweet This   Forward This

16 June 2022

Tamron has announced its 17-70mm f2.8 Di III-A VC RXD for Fujifilm X-mount APS-C mirrorless cameras, featuring a fast f2.8 maximum aperture. The new lens is the X-mount version of the 17-70mm f2.8 Di III-A VC RXD released in January 2021 for Sony E-mount APS-C mirrorless cameras.


Highlights of the new zoom include:

  • First 4.1x zoom ratio for X Mount
  • 25.5mm to 105mm equivalent focal length range
  • Two Glass Molded Aspherical elements and one hybrid aspherical element
  • Image stabilization
  • Quiet stepping motor
  • Moisture-resistant construction
  • Fluorine coating


Specifications for the X-mount zoom include:

Mount Fujifilm X
Focal Length 17mm to 70mm (25.5mm to 105mm equivalent)
Aperture f2.8 to f22
9 circular diaphragm blades
Angle of View 79°55' to 23°00'
Minimum Focus Wide Angle: 7.5 inches
Telephoto: 15.4 inches
Magnification Wide Angle: 1:4.8
Telephoto: 1:5.2 inches
Optical Design 16 elements in 12 groups
Autofocus Yes
Image Stabilization Yes
Filter Thread 67mm
Dimensions 2.63 x 4.7 inches
Weight 18.7 oz.


Tamron said the 17-70mm f2.8 Di III-A VC RXD would be available July 8 for $799. We'll update this story with pre-order information when it becomes available.

Tamron Announces the Launch of the World's First Wide Range 4.1x Standard Zoom Lens for Fujifilm X-mount

COMMACK, N.Y. -- Tamron has announced the launch of the 17-70mm f2.8 Di III-A VC RXD (Model B070), a fast-aperture standard zoom lens for Fujifilm X-mount APS-C mirrorless cameras. The lens is scheduled to be on sale on July 8, at $799. However, due to the current global health crisis, the release date or product supply schedule could change.

TThis new lens is the Fujifilm X-mount version of the 17-70mm f2.8 Di III-A VC RXD (Model B070) released in January 2021 for Sony E-mount APS-C mirrorless cameras. It features a maximum aperture of f2.8 across the entire 4.1x zoom ratio that covers the focal length range of 17-70mm (full-frame equivalent of 25.5-105mm) and superb optical performance. It is a small, lightweight lens equipped with Tamron's VC (Vibration Compensation) mechanism to minimize camera shake. The VC mechanism leverages AI technology when shooting video. It is also equipped with the quiet RXD (Rapid eXtra-silent stepping Drive) AF motor and has minimal focus breathing. These features enable videographers to shoot comfortably when using a mirrorless interchangeable-lens camera. For added versatility, the 17-70mm f2.8 offers an exceptional MOD (Minimum Object Distance) of 7.5" at the wide-angle end, Moisture-Resistant Construction and Fluorine Coating. Its 67mm filter size is the same as most Tamron lenses for mirrorless cameras. It is a highly useful lens that delivers high image quality for photography and videography with its fast f2.8 aperture.

Product Highlights

1. World's first fast-aperture standard zoom lens for APS-C mirrorless cameras with the focal length range of 17-70mm (4.1x zoom ratio)

The Model B070 has a focal length range of 17-70mm, equivalent to 25.5-105mm on full-frame cameras. It is the first f2.8 fast-aperture zoom lens in the world for APS-C mirrorless cameras to achieve a 4.1x zoom ratio.

2. Outstanding optical performance

The optical construction of the 17-70mm f2.8 features 16 elements in 12 groups. Two GM (Glass Molded Aspherical) and one hybrid aspherical lens elements are precisely arranged to maintain high-resolution performance from edge to edge.

3. VC mechanism optimized for both still images and video shooting

The 17-70mm f2.8 features Tamron's proprietary VC mechanism. Additional sophisticated algorithms optimized for this model and a dedicated, independently operating MPU (Micro Processor Unit) all combine to superbly compensate for vibration. This feature is available when the lens is used with cameras with or without in-body image stabilization. When shooting video, by leveraging AI technology, image stabilization performs automatically to best compensate for different shooting situations.

4. Exceptionally quiet RXD stepping motor

The 17-70mm f2.8 incorporates Tamron's proprietary RXD stepping motor. Remarkably quiet, the lens facilitates photography and videography in conditions that require silence. Supporting stress-free focusing from the wide-angle to the telephoto end of the zoom range, RXD technology enables the camera's focus tracking of moving objects to perform superbly.

5. Suppresses focus breathing

The 17-70mm f2.8 has minimal focus breathing, an undesirable phenomenon in which the angle of view changes depending on the focusing distance during videography. By counteracting focus breathing, the 17-70mm f2.8 empowers users' expression of their creative intentions to the fullest degree.

6. Close focusing MOD is just 7.5" at wide-angle end

7. A highly portable compact design

8. Moisture-Resistant Construction and Fluorine Coating provide extra protection

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