Tamron 28-75mm f/2.8 Di III VXD G2 vs Tamron 17-70mm f/2.8 Di III-A VC RXD
Both are Sony E mount zooms for pro standard zoom and everyday — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Tamron 28-75mm f/2.8 Di III VXD G2 | Tamron 17-70mm f/2.8 Di III-A VC RXD |
|---|---|---|
| Focal length | 28-75mm | 17-70mm |
| Max aperture | f/2.8 | f/2.8 |
| Type | zoom | zoom |
| Coverage | full-frame | APS-C |
| Mount | Sony E | Sony E |
Which should you buy?
- the Tamron 28-75mm f/2.8 Di III VXD G2 covers 28-75mm and the Tamron 17-70mm f/2.8 Di III-A VC RXD covers 17-70mm — pick the range that matches what you shoot
- the Tamron 28-75mm f/2.8 Di III VXD G2 covers full-frame (also works on APS-C bodies); the Tamron 17-70mm f/2.8 Di III-A VC RXD is APS-C-only — it won't fill a full-frame sensor
Where to buy
Check the Tamron 28-75mm f/2.8 Di III VXD G2 price on Amazon →
Check the Tamron 17-70mm f/2.8 Di III-A VC RXD price on Amazon →
FAQ
What's the difference between the Tamron 28-75mm f/2.8 Di III VXD G2 and the Tamron 17-70mm f/2.8 Di III-A VC RXD?
The Tamron 28-75mm f/2.8 Di III VXD G2 is 28-75mm f/2.8 zoom, full-frame; the Tamron 17-70mm f/2.8 Di III-A VC RXD is 17-70mm f/2.8 zoom, APS-C. Both fit the Sony E mount.
Do the Tamron 28-75mm f/2.8 Di III VXD G2 and Tamron 17-70mm f/2.8 Di III-A VC RXD fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C). Note the Tamron 17-70mm f/2.8 Di III-A VC RXD is APS-C-only and won't fill a full-frame sensor.
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