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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
Sony FE 24-70mm f/2.8 GM wins by 3
Sony FE 24-70mm f/2.8 GM — Prime/Zoom
Sony

Sony FE 24-70mm f/2.8 GM

Prime/Zoom

90
/ 100
From $2,198
Specdex verdict

Sony FE 24-70mm f/2.8 GM 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 Sony FE 24-70mm f/2.8 GM at 90. That puts Sony FE 24-70mm f/2.8 GM ahead by 3 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 Sony FE 24-70mm f/2.8 GM 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

Sony FE 24-70mm f/2.8 GM

Compared on the build sub-score

Sony FE 24-70mm f/2.8 GM leads on build (94 vs 90).

Sharpness

Sony FE 24-70mm f/2.8 GM

Compared on the sharpness sub-score

Sony FE 24-70mm f/2.8 GM leads on sharpness (90 vs 87).

Autofocus

Sony FE 24-70mm f/2.8 GM

Compared on the autofocus sub-score

Sony FE 24-70mm f/2.8 GM 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 $2,198).

Tamron 50-400mm f/4.5-6.3 Di III VC VXD 87
vs
90 Sony FE 24-70mm f/2.8 GM

Score breakdown

Tamron 50-400mm f/4.5-6.3 Di III VC VXD
87
sharpness 87
af 83
build 90
value 86
Sony FE 24-70mm f/2.8 GM
90
sharpness 90
af 89
build 94
value 84

Specs side-by-side

Tamron 50-400mm f/4.5-6.3 Di III VC VXD versus Sony FE 24-70mm f/2.8 GM — full spec comparison
Spec Tamron 50-400mm f/4.5-6.3 Di III VC VXD Sony FE 24-70mm f/2.8 GM

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

Sony FE 24-70mm f/2.8 GM

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

FAQ: Tamron 50-400mm f/4.5-6.3 Di III VC VXD vs Sony FE 24-70mm f/2.8 GM

Which is better, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Sony FE 24-70mm f/2.8 GM? +

Sony FE 24-70mm f/2.8 GM scores 90 on our weighted rubric — ahead by 3. 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 Sony FE 24-70mm f/2.8 GM worth the price? +

At $2,198, Sony FE 24-70mm f/2.8 GM delivers a Specdex score of 90 — strongest in build.

Does Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Sony FE 24-70mm f/2.8 GM 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 Sony FE 24-70mm f/2.8 GM? +

Sony FE 24-70mm f/2.8 GM — leads on build (94 vs 90). Compared on the build sub-score.

Which is better for sharpness, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Sony FE 24-70mm f/2.8 GM? +

Sony FE 24-70mm f/2.8 GM — leads on sharpness (90 vs 87). Compared on the sharpness sub-score.