Sony FE 24-70mm f/2.8 GM II 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 | Sony FE 24-70mm f/2.8 GM II | Tamron 17-70mm f/2.8 Di III-A VC RXD |
|---|---|---|
| Focal length | 24-70mm | 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 Sony FE 24-70mm f/2.8 GM II covers 24-70mm 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 Sony FE 24-70mm f/2.8 GM II 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
- the Sony FE 24-70mm f/2.8 GM II is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Tamron 17-70mm f/2.8 Di III-A VC RXD is third-party — usually the value pick
Where to buy
Sony FE 24-70mm f/2.8 GM IISee price on Amazon
Tamron 17-70mm f/2.8 Di III-A VC RXDSee price on Amazon
FAQ
What's the difference between the Sony FE 24-70mm f/2.8 GM II and the Tamron 17-70mm f/2.8 Di III-A VC RXD?
The Sony FE 24-70mm f/2.8 GM II is 24-70mm 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 Sony FE 24-70mm f/2.8 GM II 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.
More Sony E comparisons: Sony E 11mm f/1.8 vs Viltrox AF 20mm f/2.8 · Sony FE 90mm f/2.8 Macro G OSS vs Viltrox AF 75mm f/1.2 PRO · Sony FE 24-70mm f/2.8 GM II vs Tamron 28-75mm f/2.8 Di III VXD G2 · Sony FE 24mm f/2.8 G vs Viltrox AF 20mm f/2.8 · all Sony E lenses · all comparisons