The Tamron 17-28mm f/2.8 Di III RXD is a premium wide-angle zoom lens engineered for full-frame Sony E-mount mirrorless cameras, delivering a versatile ultra-wide to wide focal range ideal for landscape, astrophotography, and architectural photography. Its constant f/2.8 maximum aperture ensures consistent brightness and beautiful depth-of-field control across the entire zoom range, even in challenging low-light conditions.
Tamron’s advanced XLD and LD optical elements work in tandem with BBAR anti-reflection and fluorine coatings to eliminate chromatic aberrations, flare, and ghosting, producing images with outstanding sharpness and color accuracy. Paired with a near-silent RXD stepping AF motor, a moisture-resistant construction, and a 9-blade rounded diaphragm for pleasing bokeh, this lens is a dependable creative tool for both stills and video shooters.
Key features
- Constant f/2.8 Aperture Across 17-28mm: Maintains maximum brightness throughout the zoom range, giving you consistent low-light performance and precise depth-of-field control for dramatic wide-angle shots.
- XLD and LD Elements for Superior Clarity: eXtra Low Dispersion and Low Dispersion glass elements drastically reduce chromatic aberrations and color fringing, delivering sharp, color-accurate images from edge to edge.
- BBAR Coating Eliminates Flare and Ghosting: Broad-Band Anti-Reflection coating applied to individual elements suppresses internal reflections, ensuring high contrast and true-to-life colors even when shooting into bright light sources.
- Near-Silent RXD Autofocus Motor: The Rapid eXtra-silent stepping Drive delivers fast, smooth, and whisper-quiet autofocus — perfect for video recording and wildlife photography — with full-time manual focus override and Sony DMF compatibility.
- Close-Focus Capability at 7.5 Inches: A minimum focusing distance of just 7.5″ and a 1:5.2 maximum magnification let you get intimately close to subjects, adding creative versatility to this wide-angle zoom.
- Moisture-Resistant Build with Fluorine Coating: Weather-sealed construction and a fluorine-coated front element protect against moisture, dust, dirt, and fingerprints, making it a reliable companion for outdoor shooting in any conditions.
Specifications
| Mount | Sony E-Mount |
|---|---|
| Format Compatibility | Full-Frame (also compatible with APS-C) |
| Focal Length | 17-28mm (25.5-42mm equivalent on APS-C) |
| Maximum Aperture | f/2.8 Constant |
| Aperture Range | f/2.8 to f/22 |
| Optical Elements | XLD and LD Elements |
| Autofocus Motor | RXD (Rapid eXtra-silent stepping Drive) |
| Minimum Focus Distance | 7.5 inches |
| Maximum Magnification | 1:5.2 |
| Diaphragm Blades | 9 Rounded Blades |
| Coatings | BBAR Multi-Coating + Fluorine Front Element Coating |
| Weather Resistance | Moisture-Resistant Construction |
Frequently asked questions
Is the Tamron 17-28mm f/2.8 Di III RXD compatible with APS-C Sony cameras?
Yes, while primarily designed for full-frame Sony E-mount mirrorless cameras, this lens is fully compatible with APS-C Sony E-mount bodies, where it provides an equivalent focal length range of approximately 25.5-42mm.
How close can the Tamron 17-28mm f/2.8 Di III RXD focus?
The lens has a minimum focusing distance of 7.5 inches (approximately 19cm) and achieves a maximum magnification ratio of 1:5.2, making it capable of capturing detailed close-up shots alongside its wide-angle capabilities.
Does the Tamron 17-28mm f/2.8 Di III RXD support manual focus override?
Yes, the lens supports full-time manual focus override and is compatible with Sony's Direct Manual Focus (DMF) function, allowing photographers to fine-tune focus after the autofocus system has locked on.
