Tamron

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

Name: Tamron 50-400mm f/4.5-6.3 Di III VC VXD
Brand: Tamron
SKU: tamron-50-400mm-f-4-5-6-3-di-iii-vc-vxd

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/ 100

From $1,299

Tamron 28-75mm f/2.8 Di III VXD G2 wins by 4

Tamron

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

Sony E · f/2.8 · 540g · $899

/ 100

From $899

Specdex verdict

Tamron 28-75mm f/2.8 Di III VXD G2 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 Tamron 28-75mm f/2.8 Di III VXD G2 at 91. That puts Tamron 28-75mm f/2.8 Di III VXD G2 ahead by 4 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 Tamron 28-75mm f/2.8 Di III VXD G2 if…

✓540g — lightest f/2.8 24-70 alternative
✓Better than first-party G Master at $899
✓Quiet VXD AF motor

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Winner by scenario

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

Sharpness

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

Compared on the sharpness sub-score

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

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

Compared on the autofocus sub-score

Tamron 28-75mm f/2.8 Di III VXD G2 leads on af (92 vs 83).

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 $1,299).

Tamron 50-400mm f/4.5-6.3 Di III VC VXD 87

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

Score breakdown

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

sharpness 87

af 83

build 90

value 86

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

sharpness 92

af 92

build 88

value 96

Specs side-by-side

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Tamron 50-400mm f/4.5-6.3 Di III VC VXD versus Tamron 28-75mm f/2.8 Di III VXD G2 — full spec comparison
Spec	Tamron 50-400mm f/4.5-6.3 Di III VC VXD	Tamron 28-75mm f/2.8 Di III VXD G2
Mount	—	Sony E
Focal length	—	28-75 mm
Aperture	—	f/2.8
Construction	—	17 elements / 15 groups
Min focus	—	0.18 m
Filter	—	67 mm
Weight	—	540 g

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

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

Pros

+540g — lightest f/2.8 24-70 alternative
+Better than first-party G Master at $899
+Quiet VXD AF motor

Cons

−28mm wide-end vs 24mm of Sony GM
−No image stabilization
−No fluorine front coating

FAQ: Tamron 50-400mm f/4.5-6.3 Di III VC VXD vs Tamron 28-75mm f/2.8 Di III VXD G2

Which is better, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Tamron 28-75mm f/2.8 Di III VXD G2? +

Tamron 28-75mm f/2.8 Di III VXD G2 scores 91 on our weighted rubric — ahead by 4. 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 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 91 — strongest in value.

Does Tamron 50-400mm f/4.5-6.3 Di III VC VXD 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 sharpness, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Tamron 28-75mm f/2.8 Di III VXD G2? +

Tamron 28-75mm f/2.8 Di III VXD G2 — leads on sharpness (92 vs 87). Compared on the sharpness sub-score.

Which is better for build, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Tamron 28-75mm f/2.8 Di III VXD G2? +

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