Sony - FE 24-70mm f/2.8 GM II vs Tamron - 28-75mm f/2.8 Di III VXD G2
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sony - FE 24-70mm f/2.8 GM II | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Weight | 695 g | 540 g |
| Min focal | 24 mm | 28 mm |
| Max focal | 70 mm | 75 mm |
Between the FE 24-70mm f/2.8 GM II and 28-75mm f/2.8 Di III VXD G2, the FE 24-70mm f/2.8 GM II comes out ahead in several specs, while the 28-75mm f/2.8 Di III VXD G2 wins on weight / min focal. Overall, the FE 24-70mm f/2.8 GM II scores 66.6 and the 28-75mm f/2.8 Di III VXD G2 scores 69 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (66.6 vs 69). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
The FE 24-70mm f/2.8 GM II does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the 28-75mm f/2.8 Di III VXD G2 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, min focal, max focal. The single most decisive one: Weight — 155.00 g less. 540 vs 695.
Both ship with comparable weather sealed, optical stabilization, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Sony - FE 24-70mm f/2.8 GM II or Tamron - 28-75mm f/2.8 Di III VXD G2?
Tamron - 28-75mm f/2.8 Di III VXD G2 leads the current Mars Score by 2.4 points.The more useful decision is the trade-off behind that result: compare min focal, max focal, weight against the way you will actually use the product.
Choose Sony - FE 24-70mm f/2.8 GM II if…
Sony - FE 24-70mm f/2.8 GM II does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Tamron - 28-75mm f/2.8 Di III VXD G2 if…
Tamron - 28-75mm f/2.8 Di III VXD G2 has the measurable edge on weight g, focal min mm, focal max mm.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Sony - FE 24-70mm f/2.8 GM II wins
- No decisive advantages.
Why Tamron - 28-75mm f/2.8 Di III VXD G2 wins
- ▲Weight — 155.00 g less. 540 vs 695.
- ▲Min focal: 28 (vs 24).
- ▲Max focal: 75 (vs 70).
Spec comparison
Optics
| Spec | Sony - FE 24-70mm f/2.8 GM II | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Min focal | 24 mm | 28 mmlead |
| Max focal | 70 mm | 75 mmlead |
| Max aperture | f/2.8 | f/2.8 |
| Min aperture | f/22 | f/22 |
Build
| Spec | Sony - FE 24-70mm f/2.8 GM II | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Weight | 695 g | 540 glead |
| Weather sealedⓘ | true | true |
| Optical stabilizationⓘ | false | false |
Mount
| Spec | Sony - FE 24-70mm f/2.8 GM II | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Lens mount | Sony E | Sony E |