Tamron 20-40mm f/2.8 Di III VXD
Prime/zoom
Sigma 35-150mm f/2-2.8 DG DN Art
Prime/Zoom
Sigma 35-150mm f/2-2.8 DG DN Art takes it — here’s why.
In our weighted Specdex score, Tamron 20-40mm f/2.8 Di III VXD lands at 85 and Sigma 35-150mm f/2-2.8 DG DN Art at 91. That puts Sigma 35-150mm f/2-2.8 DG DN Art ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Tamron 20-40mm f/2.8 Di III VXD if…
- ✓Proven optical formula
- ✓Weather-sealing (L/GM/S)
- ✓Strong resale
Pick Sigma 35-150mm f/2-2.8 DG DN Art if…
- ✓Fast autofocus
- ✓Weather-sealed
- ✓Premium optics
Winner by scenario
Derived from the sub-score breakdown · not a separate testBuild
Sigma 35-150mm f/2-2.8 DG DN ArtCompared on the build sub-score
Sigma 35-150mm f/2-2.8 DG DN Art leads on build (94 vs 90).
Sharpness
Sigma 35-150mm f/2-2.8 DG DN ArtCompared on the sharpness sub-score
Sigma 35-150mm f/2-2.8 DG DN Art leads on sharpness (91 vs 85).
Autofocus
Sigma 35-150mm f/2-2.8 DG DN ArtCompared on the autofocus sub-score
Sigma 35-150mm f/2-2.8 DG DN Art leads on af (90 vs 81).
Value for money
Tamron 20-40mm f/2.8 Di III VXDSpecdex score per dollar at MSRP
Tamron 20-40mm f/2.8 Di III VXD more score per dollar ($699 vs $1,499).
Score breakdown
Specs side-by-side
| Spec | Tamron 20-40mm f/2.8 Di III VXD | Sigma 35-150mm f/2-2.8 DG DN Art |
|---|
Tamron 20-40mm f/2.8 Di III VXD
- +Proven optical formula
- +Weather-sealing (L/GM/S)
- +Strong resale
- −Mount-specific
- −Older AF motor on some
- −Heavier than modern counterparts
Sigma 35-150mm f/2-2.8 DG DN Art
- +Fast autofocus
- +Weather-sealed
- +Premium optics
- −Heavy
- −Expensive
- −Focus breathing varies
FAQ: Tamron 20-40mm f/2.8 Di III VXD vs Sigma 35-150mm f/2-2.8 DG DN Art
Which is better, Tamron 20-40mm f/2.8 Di III VXD or Sigma 35-150mm f/2-2.8 DG DN Art? +
Sigma 35-150mm f/2-2.8 DG DN Art scores 91 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.
Is Tamron 20-40mm f/2.8 Di III VXD worth the price? +
At $699, Tamron 20-40mm f/2.8 Di III VXD delivers a Specdex score of 85 — strongest in build.
Is Sigma 35-150mm f/2-2.8 DG DN Art worth the price? +
At $1,499, Sigma 35-150mm f/2-2.8 DG DN Art delivers a Specdex score of 91 — strongest in build.
Does Tamron 20-40mm f/2.8 Di III VXD or Sigma 35-150mm f/2-2.8 DG DN Art 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 build, Tamron 20-40mm f/2.8 Di III VXD or Sigma 35-150mm f/2-2.8 DG DN Art? +
Sigma 35-150mm f/2-2.8 DG DN Art — leads on build (94 vs 90). Compared on the build sub-score.
Which is better for sharpness, Tamron 20-40mm f/2.8 Di III VXD or Sigma 35-150mm f/2-2.8 DG DN Art? +
Sigma 35-150mm f/2-2.8 DG DN Art — leads on sharpness (91 vs 85). Compared on the sharpness sub-score.