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Nikon Z 100-400mm f/4.5-5.6 VR S — Prime/Zoom
Nikon

Nikon Z 100-400mm f/4.5-5.6 VR S

Prime/Zoom

91
/ 100
From $2,699
VS
Nikon Z 100-400mm f/4.5-5.6 VR S wins by 4
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

Nikon Z 100-400mm f/4.5-5.6 VR S takes it — here’s why.

In our weighted Specdex score, Nikon Z 100-400mm f/4.5-5.6 VR S lands at 91 and Tamron 50-400mm f/4.5-6.3 Di III VC VXD at 87. That puts Nikon Z 100-400mm f/4.5-5.6 VR S ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Nikon Z 100-400mm f/4.5-5.6 VR S 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

Nikon Z 100-400mm f/4.5-5.6 VR S

Compared on the sharpness sub-score

Nikon Z 100-400mm f/4.5-5.6 VR S leads on sharpness (91 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

Nikon Z 100-400mm f/4.5-5.6 VR S

Compared on the autofocus sub-score

Nikon Z 100-400mm f/4.5-5.6 VR S leads on af (89 vs 83).

Value for money

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

Specdex score per dollar at MSRP

Tamron 50-400mm f/4.5-6.3 Di III VC VXD more score per dollar ($1,299 vs $2,699).

Nikon Z 100-400mm f/4.5-5.6 VR S 91
vs
87 Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Score breakdown

Nikon Z 100-400mm f/4.5-5.6 VR S
91
sharpness 91
af 89
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

Nikon Z 100-400mm f/4.5-5.6 VR S versus Tamron 50-400mm f/4.5-6.3 Di III VC VXD — full spec comparison
Spec Nikon Z 100-400mm f/4.5-5.6 VR S Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Nikon Z 100-400mm f/4.5-5.6 VR S

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: Nikon Z 100-400mm f/4.5-5.6 VR S vs Tamron 50-400mm f/4.5-6.3 Di III VC VXD

Which is better, Nikon Z 100-400mm f/4.5-5.6 VR S or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Nikon Z 100-400mm f/4.5-5.6 VR S scores 91 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.

Is Nikon Z 100-400mm f/4.5-5.6 VR S worth the price? +

At $2,699, Nikon Z 100-400mm f/4.5-5.6 VR S delivers a Specdex score of 91 — 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 Nikon Z 100-400mm f/4.5-5.6 VR S 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, Nikon Z 100-400mm f/4.5-5.6 VR S or Tamron 50-400mm f/4.5-6.3 Di III VC VXD? +

Nikon Z 100-400mm f/4.5-5.6 VR S — leads on sharpness (91 vs 87). Compared on the sharpness sub-score.

Which is better for build, Nikon Z 100-400mm f/4.5-5.6 VR S 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.