Skip to content
Specdex
Compare now
Tamron 28-75mm f/2.8 Di III VXD G2 — Prime/Zoom
Tamron

Tamron 28-75mm f/2.8 Di III VXD G2

Prime/Zoom

88
/ 100
From $899
VS
Sigma 24-70mm f/2.8 DG DN II Art wins by 2
Sigma 24-70mm f/2.8 DG DN II Art — Mirrorless standard zoom · 745 g
Sigma

Sigma 24-70mm f/2.8 DG DN II Art

Mirrorless standard zoom · 745 g

90
/ 100
From $1,199
Specdex verdict

Sigma 24-70mm f/2.8 DG DN II Art takes it — here’s why.

In our weighted Specdex score, Tamron 28-75mm f/2.8 Di III VXD G2 lands at 88 and Sigma 24-70mm f/2.8 DG DN II Art at 90. 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 Tamron 28-75mm f/2.8 Di III VXD G2 if…

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

Pick Sigma 24-70mm f/2.8 DG DN II Art if…

  • ✓Great optics for half the price of GM
  • ✓Dual HLA motors
  • ✓Solid sealing
Share this comparison: Share to Reddit X / Twitter

Winner by scenario

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

Build

Tamron 28-75mm f/2.8 Di III VXD G2

Compared on the build sub-score

Tamron 28-75mm f/2.8 Di III VXD G2 leads on build (94 vs 90).

Sharpness

Sigma 24-70mm f/2.8 DG DN II Art

Compared on the sharpness sub-score

Sigma 24-70mm f/2.8 DG DN II Art leads on sharpness (92 vs 88).

Autofocus

Sigma 24-70mm f/2.8 DG DN II Art

Compared on the autofocus sub-score

Sigma 24-70mm f/2.8 DG DN II Art leads on af (90 vs 87).

Value for money

Tamron 28-75mm f/2.8 Di III VXD G2

Specdex score per dollar at MSRP

Tamron 28-75mm f/2.8 Di III VXD G2 more score per dollar ($899 vs $1,199).

Tamron 28-75mm f/2.8 Di III VXD G2 88
vs
90 Sigma 24-70mm f/2.8 DG DN II Art

Score breakdown

Tamron 28-75mm f/2.8 Di III VXD G2
88
sharpness 88
af 87
build 94
value 84
Sigma 24-70mm f/2.8 DG DN II Art
90
sharpness 92
af 90
build 90
value 96

Specs side-by-side

Tamron 28-75mm f/2.8 Di III VXD G2 versus Sigma 24-70mm f/2.8 DG DN II Art — full spec comparison
Spec Tamron 28-75mm f/2.8 Di III VXD G2 Sigma 24-70mm f/2.8 DG DN II Art
Mount
—
Sony E, L-Mount
Aperture
—
f/2.8
Weight
—
745 g

Tamron 28-75mm f/2.8 Di III VXD G2

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

Sigma 24-70mm f/2.8 DG DN II Art

Pros
  • +Great optics for half the price of GM
  • +Dual HLA motors
  • +Solid sealing
Cons
  • −Slightly slower AF than GM II
  • −Heavier than GM II
  • −Focus breathing present

FAQ: Tamron 28-75mm f/2.8 Di III VXD G2 vs Sigma 24-70mm f/2.8 DG DN II Art

Which is better, Tamron 28-75mm f/2.8 Di III VXD G2 or Sigma 24-70mm f/2.8 DG DN II Art? +

Sigma 24-70mm f/2.8 DG DN II Art scores 90 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

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 88 — strongest in build.

Is Sigma 24-70mm f/2.8 DG DN II Art worth the price? +

At $1,199, Sigma 24-70mm f/2.8 DG DN II Art delivers a Specdex score of 90 — strongest in value.

Does Tamron 28-75mm f/2.8 Di III VXD G2 or Sigma 24-70mm f/2.8 DG DN II 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 28-75mm f/2.8 Di III VXD G2 or Sigma 24-70mm f/2.8 DG DN II Art? +

Tamron 28-75mm f/2.8 Di III VXD G2 — leads on build (94 vs 90). Compared on the build sub-score.

Which is better for sharpness, Tamron 28-75mm f/2.8 Di III VXD G2 or Sigma 24-70mm f/2.8 DG DN II Art? +

Sigma 24-70mm f/2.8 DG DN II Art — leads on sharpness (92 vs 88). Compared on the sharpness sub-score.