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Viltrox AF 20mm f/2.8 Full-Frame — Prime/zoom
Viltrox

Viltrox AF 20mm f/2.8 Full-Frame

Prime/zoom

82
/ 100
From $169
VS
Sigma 35-150mm f/2-2.8 DG DN Art wins by 9
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
Specdex verdict

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

In our weighted Specdex score, Viltrox AF 20mm f/2.8 Full-Frame lands at 82 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 9 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Viltrox AF 20mm f/2.8 Full-Frame 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
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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 82).

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 78).

Value for money

Viltrox AF 20mm f/2.8 Full-Frame

Specdex score per dollar at MSRP

Viltrox AF 20mm f/2.8 Full-Frame more score per dollar ($169 vs $1,499).

Viltrox AF 20mm f/2.8 Full-Frame 82
vs
91 Sigma 35-150mm f/2-2.8 DG DN Art

Score breakdown

Viltrox AF 20mm f/2.8 Full-Frame
82
sharpness 82
af 78
build 90
value 86
Sigma 35-150mm f/2-2.8 DG DN Art
91
sharpness 91
af 90
build 94
value 84

Specs side-by-side

Viltrox AF 20mm f/2.8 Full-Frame versus Sigma 35-150mm f/2-2.8 DG DN Art — full spec comparison
Spec Viltrox AF 20mm f/2.8 Full-Frame Sigma 35-150mm f/2-2.8 DG DN Art

Viltrox AF 20mm f/2.8 Full-Frame

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

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

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

FAQ: Viltrox AF 20mm f/2.8 Full-Frame vs Sigma 35-150mm f/2-2.8 DG DN Art

Which is better, Viltrox AF 20mm f/2.8 Full-Frame 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 9. Your best pick depends on the sub-scores above.

Is Viltrox AF 20mm f/2.8 Full-Frame worth the price? +

At $169, Viltrox AF 20mm f/2.8 Full-Frame delivers a Specdex score of 82 — 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 Viltrox AF 20mm f/2.8 Full-Frame 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, Viltrox AF 20mm f/2.8 Full-Frame 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, Viltrox AF 20mm f/2.8 Full-Frame 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 82). Compared on the sharpness sub-score.