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Sigma 50mm f/1.4 DG DN Art — Prime/Zoom
Sigma

Sigma 50mm f/1.4 DG DN Art

Prime/Zoom

92
/ 100
From $849
VS
Sigma 50mm f/1.4 DG DN Art wins by 5
Tamron 50-400mm f/4.5-6.3 Di III VC VXD — Prime/zoom
Tamron

Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Prime/zoom

87
/ 100
From $1,299
Specdex verdict

Sigma 50mm f/1.4 DG DN Art takes it — here’s why.

In our weighted Specdex score, Sigma 50mm f/1.4 DG DN Art lands at 92 and Tamron 50-400mm f/4.5-6.3 Di III VC VXD at 87. That puts Sigma 50mm f/1.4 DG DN Art ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Sigma 50mm f/1.4 DG DN Art if…

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

Pick Tamron 50-400mm f/4.5-6.3 Di III VC VXD if…

  • ✓Proven optical formula
  • ✓Weather-sealing (L/GM/S)
  • ✓Strong resale
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Winner by scenario

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

Sharpness

Sigma 50mm f/1.4 DG DN Art

Compared on the sharpness sub-score

Sigma 50mm f/1.4 DG DN Art leads on sharpness (92 vs 87).

Build

Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Compared on the build sub-score

Tamron 50-400mm f/4.5-6.3 Di III VC VXD leads on build (90 vs 88).

Autofocus

Sigma 50mm f/1.4 DG DN Art

Compared on the autofocus sub-score

Sigma 50mm f/1.4 DG DN Art leads on af (90 vs 83).

Value for money

Sigma 50mm f/1.4 DG DN Art

Specdex score per dollar at MSRP

Sigma 50mm f/1.4 DG DN Art more score per dollar ($849 vs $1,299).

Sigma 50mm f/1.4 DG DN Art 92
vs
87 Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Score breakdown

Sigma 50mm f/1.4 DG DN Art
92
sharpness 92
af 90
build 88
value 85
Tamron 50-400mm f/4.5-6.3 Di III VC VXD
87
sharpness 87
af 83
build 90
value 86

Specs side-by-side

Sigma 50mm f/1.4 DG DN Art versus Tamron 50-400mm f/4.5-6.3 Di III VC VXD — full spec comparison
Spec Sigma 50mm f/1.4 DG DN Art Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Sigma 50mm f/1.4 DG DN Art

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

Tamron 50-400mm f/4.5-6.3 Di III VC 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 50mm f/1.4 DG DN Art vs Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Which is better, Sigma 50mm f/1.4 DG DN Art or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Sigma 50mm f/1.4 DG DN Art scores 92 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.

Is Sigma 50mm f/1.4 DG DN Art worth the price? +

At $849, Sigma 50mm f/1.4 DG DN Art delivers a Specdex score of 92 — strongest in sharpness.

Is Tamron 50-400mm f/4.5-6.3 Di III VC VXD worth the price? +

At $1,299, Tamron 50-400mm f/4.5-6.3 Di III VC VXD delivers a Specdex score of 87 — strongest in build.

Does Sigma 50mm f/1.4 DG DN Art or Tamron 50-400mm f/4.5-6.3 Di III VC 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 sharpness, Sigma 50mm f/1.4 DG DN Art or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Sigma 50mm f/1.4 DG DN Art — leads on sharpness (92 vs 87). Compared on the sharpness sub-score.

Which is better for build, Sigma 50mm f/1.4 DG DN Art or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Tamron 50-400mm f/4.5-6.3 Di III VC VXD — leads on build (90 vs 88). Compared on the build sub-score.