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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
VS
Nikon Z 50mm f/1.8 S wins by 1
Nikon Z 50mm f/1.8 S — Prime/Zoom
Nikon

Nikon Z 50mm f/1.8 S

Prime/Zoom

88
/ 100
From $599
Specdex verdict

Nikon Z 50mm f/1.8 S takes it — here’s why.

In our weighted Specdex score, Tamron 50-400mm f/4.5-6.3 Di III VC VXD lands at 87 and Nikon Z 50mm f/1.8 S at 88. That puts Nikon Z 50mm f/1.8 S ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.

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

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

Pick Nikon Z 50mm f/1.8 S 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

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).

Sharpness

Tie

Compared on the sharpness sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Autofocus

Nikon Z 50mm f/1.8 S

Compared on the autofocus sub-score

Nikon Z 50mm f/1.8 S leads on af (86 vs 83).

Value for money

Nikon Z 50mm f/1.8 S

Specdex score per dollar at MSRP

Nikon Z 50mm f/1.8 S more score per dollar ($599 vs $1,299).

Tamron 50-400mm f/4.5-6.3 Di III VC VXD 87
vs
88 Nikon Z 50mm f/1.8 S

Score breakdown

Tamron 50-400mm f/4.5-6.3 Di III VC VXD
87
sharpness 87
af 83
build 90
value 86
Nikon Z 50mm f/1.8 S
88
sharpness 88
af 86
build 88
value 85

Specs side-by-side

Tamron 50-400mm f/4.5-6.3 Di III VC VXD versus Nikon Z 50mm f/1.8 S — full spec comparison
Spec Tamron 50-400mm f/4.5-6.3 Di III VC VXD Nikon Z 50mm f/1.8 S

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

Nikon Z 50mm f/1.8 S

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

FAQ: Tamron 50-400mm f/4.5-6.3 Di III VC VXD vs Nikon Z 50mm f/1.8 S

Which is better, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Nikon Z 50mm f/1.8 S? +

Nikon Z 50mm f/1.8 S scores 88 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.

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.

Is Nikon Z 50mm f/1.8 S worth the price? +

At $599, Nikon Z 50mm f/1.8 S delivers a Specdex score of 88 — strongest in sharpness.

Does Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Nikon Z 50mm f/1.8 S 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 50-400mm f/4.5-6.3 Di III VC VXD or Nikon Z 50mm f/1.8 S? +

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

Which is better for autofocus, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Nikon Z 50mm f/1.8 S? +

Nikon Z 50mm f/1.8 S — leads on af (86 vs 83). Compared on the autofocus sub-score.