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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
VS
Sony FE 20mm f/1.8 G — Prime/Zoom
Sony

Sony FE 20mm f/1.8 G

Prime/Zoom

90
/ 100
From $898
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Sigma 24-70mm f/2.8 DG DN II Art lands at 90 and Sony FE 20mm f/1.8 G at 90. With scores tied, the decision hinges on which sub-scores matter most to you.

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

Pick Sony FE 20mm f/1.8 G if…

  • ✓Fast aperture
  • ✓Quiet autofocus
  • ✓Weather-sealed (most)
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Winner by scenario

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

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 90).

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 88).

Build

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

Compared on the build sub-score

Sigma 24-70mm f/2.8 DG DN II Art leads on build (90 vs 88).

Value for money

Sony FE 20mm f/1.8 G

Specdex score per dollar at MSRP

Sony FE 20mm f/1.8 G more score per dollar ($898 vs $1,199).

Sigma 24-70mm f/2.8 DG DN II Art 90
vs
90 Sony FE 20mm f/1.8 G

Score breakdown

Sigma 24-70mm f/2.8 DG DN II Art
90
sharpness 92
af 90
build 90
value 96
Sony FE 20mm f/1.8 G
90
sharpness 90
af 88
build 88
value 85

Specs side-by-side

Sigma 24-70mm f/2.8 DG DN II Art versus Sony FE 20mm f/1.8 G — full spec comparison
Spec Sigma 24-70mm f/2.8 DG DN II Art Sony FE 20mm f/1.8 G
Mount
Sony E, L-Mount
—
Aperture
f/2.8
—
Weight
745 g
—

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

Sony FE 20mm f/1.8 G

Pros
  • +Fast aperture
  • +Quiet autofocus
  • +Weather-sealed (most)
Cons
  • −Mount-specific
  • −Weight varies
  • −Price scales with quality

FAQ: Sigma 24-70mm f/2.8 DG DN II Art vs Sony FE 20mm f/1.8 G

Which is better, Sigma 24-70mm f/2.8 DG DN II Art or Sony FE 20mm f/1.8 G? +

Both score 90 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

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

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

Is Sony FE 20mm f/1.8 G worth the price? +

At $898, Sony FE 20mm f/1.8 G delivers a Specdex score of 90 — strongest in sharpness.

Does Sigma 24-70mm f/2.8 DG DN II Art or Sony FE 20mm f/1.8 G 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 Sony FE 20mm f/1.8 G? +

Sigma 24-70mm f/2.8 DG DN II Art — leads on sharpness (92 vs 90). Compared on the sharpness sub-score.

Which is better for autofocus, Sigma 24-70mm f/2.8 DG DN II Art or Sony FE 20mm f/1.8 G? +

Sigma 24-70mm f/2.8 DG DN II Art — leads on af (90 vs 88). Compared on the autofocus sub-score.