Skip to content
Specdex
Compare now
Sigma 35-150mm f/2-2.8 DG DN Art — Prime/Zoom
Sigma

Sigma 35-150mm f/2-2.8 DG DN Art

Prime/Zoom

91
/ 100
From $1,499
VS
Sigma 35-150mm f/2-2.8 DG DN Art wins by 6
Tamron 20-40mm f/2.8 Di III VXD — Prime/zoom
Tamron

Tamron 20-40mm f/2.8 Di III VXD

Prime/zoom

85
/ 100
From $699
Specdex verdict

Sigma 35-150mm f/2-2.8 DG DN Art takes it — here’s why.

In our weighted Specdex score, Sigma 35-150mm f/2-2.8 DG DN Art lands at 91 and Tamron 20-40mm f/2.8 Di III VXD at 85. 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 Sigma 35-150mm f/2-2.8 DG DN Art if…

  • ✓Fast autofocus
  • ✓Weather-sealed
  • ✓Premium optics

Pick Tamron 20-40mm f/2.8 Di III VXD if…

  • ✓Proven optical formula
  • ✓Weather-sealing (L/GM/S)
  • ✓Strong resale
Share this comparison: Share to Reddit X / Twitter

Winner by scenario

Derived from the sub-score breakdown · not a separate test

Build

Sigma 35-150mm f/2-2.8 DG DN Art

Compared 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 Art

Compared 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 Art

Compared 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 VXD

Specdex score per dollar at MSRP

Tamron 20-40mm f/2.8 Di III VXD more score per dollar ($699 vs $1,499).

Sigma 35-150mm f/2-2.8 DG DN Art 91
vs
85 Tamron 20-40mm f/2.8 Di III VXD

Score breakdown

Sigma 35-150mm f/2-2.8 DG DN Art
91
sharpness 91
af 90
build 94
value 84
Tamron 20-40mm f/2.8 Di III VXD
85
sharpness 85
af 81
build 90
value 86

Specs side-by-side

Sigma 35-150mm f/2-2.8 DG DN Art versus Tamron 20-40mm f/2.8 Di III VXD — full spec comparison
Spec Sigma 35-150mm f/2-2.8 DG DN Art Tamron 20-40mm f/2.8 Di III VXD

Sigma 35-150mm f/2-2.8 DG DN Art

Pros
  • +Fast autofocus
  • +Weather-sealed
  • +Premium optics
Cons
  • −Heavy
  • −Expensive
  • −Focus breathing varies

Tamron 20-40mm f/2.8 Di III VXD

Pros
  • +Proven optical formula
  • +Weather-sealing (L/GM/S)
  • +Strong resale
Cons
  • −Mount-specific
  • −Older AF motor on some
  • −Heavier than modern counterparts

FAQ: Sigma 35-150mm f/2-2.8 DG DN Art vs Tamron 20-40mm f/2.8 Di III VXD

Which is better, Sigma 35-150mm f/2-2.8 DG DN Art or Tamron 20-40mm f/2.8 Di III VXD? +

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 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.

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.

Does Sigma 35-150mm f/2-2.8 DG DN Art or Tamron 20-40mm f/2.8 Di III VXD 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, Sigma 35-150mm f/2-2.8 DG DN Art or Tamron 20-40mm f/2.8 Di III VXD? +

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, Sigma 35-150mm f/2-2.8 DG DN Art or Tamron 20-40mm f/2.8 Di III VXD? +

Sigma 35-150mm f/2-2.8 DG DN Art — leads on sharpness (91 vs 85). Compared on the sharpness sub-score.