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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 3
Tamron 28-75mm f/2.8 Di III VXD G2 — Prime/Zoom
Tamron

Tamron 28-75mm f/2.8 Di III VXD G2

Prime/Zoom

88
/ 100
From $899
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 28-75mm f/2.8 Di III VXD G2 at 88. That puts Nikon Z 100-400mm f/4.5-5.6 VR S ahead by 3 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 28-75mm f/2.8 Di III VXD G2 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

Tamron 28-75mm f/2.8 Di III VXD G2

Compared on the build sub-score

Tamron 28-75mm f/2.8 Di III VXD G2 leads on build (94 vs 88).

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 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 87).

Value for money

Tamron 28-75mm f/2.8 Di III VXD G2

Specdex score per dollar at MSRP

Tamron 28-75mm f/2.8 Di III VXD G2 more score per dollar ($899 vs $2,699).

Nikon Z 100-400mm f/4.5-5.6 VR S 91
vs
88 Tamron 28-75mm f/2.8 Di III VXD G2

Score breakdown

Nikon Z 100-400mm f/4.5-5.6 VR S
91
sharpness 91
af 89
build 88
value 85
Tamron 28-75mm f/2.8 Di III VXD G2
88
sharpness 88
af 87
build 94
value 84

Specs side-by-side

Nikon Z 100-400mm f/4.5-5.6 VR S versus Tamron 28-75mm f/2.8 Di III VXD G2 — full spec comparison
Spec Nikon Z 100-400mm f/4.5-5.6 VR S Tamron 28-75mm f/2.8 Di III VXD G2

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 28-75mm f/2.8 Di III VXD G2

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

FAQ: Nikon Z 100-400mm f/4.5-5.6 VR S vs Tamron 28-75mm f/2.8 Di III VXD G2

Which is better, Nikon Z 100-400mm f/4.5-5.6 VR S or Tamron 28-75mm f/2.8 Di III VXD G2? +

Nikon Z 100-400mm f/4.5-5.6 VR S scores 91 on our weighted rubric — ahead by 3. 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 28-75mm f/2.8 Di III VXD G2 worth the price? +

At $899, Tamron 28-75mm f/2.8 Di III VXD G2 delivers a Specdex score of 88 — strongest in build.

Does Nikon Z 100-400mm f/4.5-5.6 VR S or Tamron 28-75mm f/2.8 Di III VXD G2 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, Nikon Z 100-400mm f/4.5-5.6 VR S or Tamron 28-75mm f/2.8 Di III VXD G2? +

Tamron 28-75mm f/2.8 Di III VXD G2 — leads on build (94 vs 88). Compared on the build sub-score.

Which is better for sharpness, Nikon Z 100-400mm f/4.5-5.6 VR S or Tamron 28-75mm f/2.8 Di III VXD G2? +

Nikon Z 100-400mm f/4.5-5.6 VR S — leads on sharpness (91 vs 88). Compared on the sharpness sub-score.