Specification :
The world's first 17-70mm F2.8, large aperture standard zoom lens for APS-C mirrorless cameras
The 17-70mm F/2.8 Di III-A VC RXD (Model B070) is a large aperture everyday zoom lens for Sony E-mount APS-C mirrorless cameras. This lens was created to achieve a broad zoom range and excellent image quality. With a focal length range of 17-70mm (a full-frame equivalent of 25.5-105mm), it’s the world's first F2.8 standard zoom lens with a 4.1x zoom ratio for APS-C cameras. The 17-70mm includes Tamron's proprietary VC (Vibration Compensation). Additionally, this lens focuses very close. It features an MOD (Minimum Object Distance) of 0.19m (7.5 in) at the wide-angle end and 0.39m (15.4 in) at the telephoto end. When shooting very close to the subject, the lens enables expressive imagery with highly blurred backgrounds, a feature unique to large aperture lenses. From portrait to landscape, and your everyday life, this lens captures all of the excitement and discoveries with the finest possible detail.
The 17-70mm F2.8 utilizes Tamron's highly regarded, proprietary VC image stabilization to maximize the inherent optical performance of the lens. It reduces the degradation of picture quality caused by minute camera shake that is likely to occur during handheld shooting at slow shutter speeds under low-light conditions indoors or at dusk. When shooting video, by leveraging AI technology, image stabilization performance improves compared to conventional models.
The AF drive incorporates an RXD (Rapid eXtra-silent stepping Drive) stepping motor unit. RXD uses an actuator that is able to precisely control the rotational angle of the motor, allowing it to drive the focusing lens without passing through a reduction gear.The addition of a sensor that detects the position of the lens to a high degree of accuracy enables high-speed and precise AF, which allows you to maintain razorsharp focus when shooting continually moving subjects or filming video. The lens is also remarkably quiet, eliminating concerns of drive sounds being picked up while shooting video
Tamron’s new 17-70mm F2.8 zoom is compatible with
many of the advanced features that are specific to
mirrorless cameras. This includes:
The VC Image Stabilizer delivers sharp and shake-free images, as well as a smooth viewfinder image.
| Model | B070 |
|---|---|
| Focal Length | 17-70mm |
| Maximum Aperture | F2.8 |
| Angle of View (diagonal) | 79?55'-23?00' (for APS-C frame mirrorless format) |
| Optical Construction | 16 elements in 12 groups |
| Minimum Object Distance | 0.19m (7.5 in) (WIDE) / 0.39m (15.4 in) (TELE) |
| Maximum Magnification Ratio | 1:4.8 (WIDE) / 1:5.2 (TELE) |
| Filter Size | φ67mm |
| Maximum Diameter | φ74.6mm |
| Length* | 119.3mm / 4.7 in (Sony) 119.6mm / 4.7 in (FUJIFILM) |
| Weight | 525g / 18.5 oz (Sony) 530g / 18.7 oz (FUJIFILM) |
| Aperture Blades | 9 (circular diaphragm)** |
| Minumum Aperture | F22 |
| Standard Accessory | Flower-shaped hood, Lens caps |
| Mounts | Sony E-mount, FUJIFILM X-mount |
* Length is the distance from the front tip of the lens to the lens mount face.
** The circular diaphragm stays almost perfectly circular up to two stops down from maximum aperture.
Specifications, appearance, functionality, etc. are subject to change without prior notice.
This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.
Release Date
January 14th, 2021 (Sony)
July 8th, 2022 (FUJIFILM)
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