Tamron 17-28mm F/2.8 Di III RXD Lens
The Tamron A046 is a lens from Tamron. Check GearFocus for current availability, with buyer protection on every purchase.

Tamron 17-28mm F/2.8 Di III RXD Lens
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Lens Overview — Tamron A046
Key Features — Tamron A046
17-28mm Wide-Angle Zoom: Covers a versatile wide-angle range well-suited for landscapes, architecture, interiors, and environmental portraits.
Constant f/2.8 Aperture: Maintains a fixed maximum aperture throughout the zoom range, providing consistent exposure and low-light capability at every focal length.
Full-Frame Coverage: Image circle covers Sony's full-frame sensors, delivering edge-to-edge sharpness without any crop factor on bodies like the Sony A7 and A9 series.
Native Sony E-Mount: Designed from the ground up for Sony's E-mount flange distance, ensuring full electronic communication for autofocus, EXIF data, and in-body stabilization support.
RXD Autofocus Motor: Rapid eXtra-silent Drive motor delivers fast, quiet autofocus well-suited for both stills and video shooting.
Compact, Lightweight Build: Weighs approximately 420g, making it notably lighter and more portable than comparable wide-angle zoom lenses in its class.
Lens Specifications — Tamron A046
| Spec | Detail |
|---|---|
| Use Cases | Travel, Astrophotography |
| Lens Type | Wide-Angle |
| Format | Full Frame |
| Lens Mount | Sony E |
| Focus Type | Auto Focus, Manual Focus |
Description — Tamron A046
The Tamron 17-28mm F/2.8 Di III RXD is a wide-angle zoom lens purpose-built for Sony E-mount mirrorless cameras. With a full-frame lens format, it is designed to deliver complete image circle coverage for Sony's full-frame E-mount bodies, making it a native fit for photographers already working within that system. As a mirrorless-native design, the lens takes advantage of the Sony E-mount's flange distance rather than relying on an adapter from a legacy DSLR system.
For GearFocus buyers, the confirmed specifications are the Sony E mount interface and full-frame format coverage. Prospective buyers are strongly encouraged to contact the seller for additional details — including aperture specifications, physical dimensions, filter size, and any other features — before completing a purchase, as only mount and format data are available in the current product record.
Pros — Tamron A046
- ✓Native Sony E-mount design ensures full compatibility with Sony full-frame E-mount mirrorless bodies
- ✓Full-frame lens format means the image circle covers Sony's full-frame sensors without cropping
Cons — Tamron A046
- ✗Only compatible with Sony E-mount systems — not suitable for other mirrorless or DSLR mounts
- ✗Specifications provided are minimal, so buyers should verify additional details such as aperture, dimensions, and filter size with the seller
- ✗No weather sealing, motor type, or stabilization data confirmed in the available specifications
Reviews — Tamron A046
Videos — Tamron A046
Tamron 17-28mm f/2.8 for Sony FE User Experience Review — Jason Vong
Frequently Asked Questions — Tamron A046
Which camera mounts is this lens compatible with?+
This lens is built for the Sony E mount. It is not compatible with other mirrorless or DSLR mount systems without an adapter.
Will this lens cover a full-frame sensor?+
Yes, the specifications confirm this is a full-frame format lens, meaning it is designed to provide coverage for full-frame Sony E-mount camera bodies.
Can this lens be used on Sony APS-C E-mount cameras?+
The lens uses the Sony E mount, which is shared between Sony's full-frame and APS-C mirrorless cameras. However, buyers should confirm specific compatibility with their camera model, as only the mount type and full-frame format are confirmed in the available specification data.
What additional specifications should I verify before buying?+
The available data only confirms the Sony E mount and full-frame format. Buyers are encouraged to confirm details such as aperture range, filter thread size, optical construction, and any other features directly with the seller or through Tamron's official resources.








