Sigma 24-70mm f/2.8 DG DN II Art
L/E mount · Constant f/2.8 · 745g
Tamron 28-75mm f/2.8 Di III VXD G2
Sony E · f/2.8 · 540g · $899
Sigma 24-70mm f/2.8 DG DN II Art takes it — here’s why.
In our weighted Specdex score, Sigma 24-70mm f/2.8 DG DN II Art lands at 93 and Tamron 28-75mm f/2.8 Di III VXD G2 at 91. That puts Sigma 24-70mm f/2.8 DG DN II Art ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Sigma 24-70mm f/2.8 DG DN II Art if…
- ✓Sharper than first-party Sony GM at 1/3 the price
- ✓Aperture ring with click toggle
- ✓Weather-sealed
Pick Tamron 28-75mm f/2.8 Di III VXD G2 if…
- ✓540g — lightest f/2.8 24-70 alternative
- ✓Better than first-party G Master at $899
- ✓Quiet VXD AF motor
Winner by scenario
Derived from the sub-score breakdown · not a separate testSharpness
Sigma 24-70mm f/2.8 DG DN II ArtCompared on the sharpness sub-score
Sigma 24-70mm f/2.8 DG DN II Art leads on sharpness (95 vs 92).
Autofocus
TieCompared on the autofocus sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Build
Sigma 24-70mm f/2.8 DG DN II ArtCompared on the build sub-score
Sigma 24-70mm f/2.8 DG DN II Art leads on build (92 vs 88).
Value for money
Tamron 28-75mm f/2.8 Di III VXD G2Specdex score per dollar at MSRP
Tamron 28-75mm f/2.8 Di III VXD G2 more score per dollar ($899 vs $1,099).
Score breakdown
Specs side-by-side
| Spec | Sigma 24-70mm f/2.8 DG DN II Art | Tamron 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Mount | L-Mount + Sony E | Sony E |
| Focal length | 24-70 mm | 28-75 mm |
| Aperture | f/2.8 | f/2.8 |
| Construction | 19 elements / 15 groups | 17 elements / 15 groups |
| Min focus | 0.18 m | 0.18 m |
| Filter | 82 mm | 67 mm |
| Weight | 745 g | ▲ 540 g |
Sigma 24-70mm f/2.8 DG DN II Art
- +Sharper than first-party Sony GM at 1/3 the price
- +Aperture ring with click toggle
- +Weather-sealed
- −Heavier than Sony GM II
- −Not stabilized — relies on body IBIS
- −Hood plastic
Tamron 28-75mm f/2.8 Di III VXD G2
- +540g — lightest f/2.8 24-70 alternative
- +Better than first-party G Master at $899
- +Quiet VXD AF motor
- −28mm wide-end vs 24mm of Sony GM
- −No image stabilization
- −No fluorine front coating
FAQ: Sigma 24-70mm f/2.8 DG DN II Art vs Tamron 28-75mm f/2.8 Di III VXD G2
Which is better, Sigma 24-70mm f/2.8 DG DN II Art or Tamron 28-75mm f/2.8 Di III VXD G2? +
Sigma 24-70mm f/2.8 DG DN II Art scores 93 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is Sigma 24-70mm f/2.8 DG DN II Art worth the price? +
At $1,099, Sigma 24-70mm f/2.8 DG DN II Art delivers a Specdex score of 93 — strongest in sharpness.
Is Tamron 28-75mm f/2.8 Di III VXD G2 worth the price? +
At $899, Tamron 28-75mm f/2.8 Di III VXD G2 delivers a Specdex score of 91 — strongest in value.
Does Sigma 24-70mm f/2.8 DG DN II Art or Tamron 28-75mm f/2.8 Di III VXD G2 last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is better for sharpness, Sigma 24-70mm f/2.8 DG DN II Art or Tamron 28-75mm f/2.8 Di III VXD G2? +
Sigma 24-70mm f/2.8 DG DN II Art — leads on sharpness (95 vs 92). Compared on the sharpness sub-score.
Which is better for build, Sigma 24-70mm f/2.8 DG DN II Art or Tamron 28-75mm f/2.8 Di III VXD G2? +
Sigma 24-70mm f/2.8 DG DN II Art — leads on build (92 vs 88). Compared on the build sub-score.