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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
VS
Canon RF 50mm f/1.2L USM wins by 8
Canon RF 50mm f/1.2L USM — Prime/Zoom
Canon

Canon RF 50mm f/1.2L USM

Prime/Zoom

96
/ 100
From $2,299
Specdex verdict

Canon RF 50mm f/1.2L USM takes it — here’s why.

In our weighted Specdex score, Tamron 28-75mm f/2.8 Di III VXD G2 lands at 88 and Canon RF 50mm f/1.2L USM at 96. That puts Canon RF 50mm f/1.2L USM ahead by 8 points — a decisive margin driven mostly by its strengths in the categories below.

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

  • ✓Fast autofocus
  • ✓Weather-sealed
  • ✓Premium optics

Pick Canon RF 50mm f/1.2L USM 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

Tie

Compared on the build sub-score

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

Sharpness

Canon RF 50mm f/1.2L USM

Compared on the sharpness sub-score

Canon RF 50mm f/1.2L USM leads on sharpness (96 vs 88).

Autofocus

Canon RF 50mm f/1.2L USM

Compared on the autofocus sub-score

Canon RF 50mm f/1.2L USM leads on af (95 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 $2,299).

Tamron 28-75mm f/2.8 Di III VXD G2 88
vs
96 Canon RF 50mm f/1.2L USM

Score breakdown

Tamron 28-75mm f/2.8 Di III VXD G2
88
sharpness 88
af 87
build 94
value 84
Canon RF 50mm f/1.2L USM
96
sharpness 96
af 95
build 94
value 84

Specs side-by-side

Tamron 28-75mm f/2.8 Di III VXD G2 versus Canon RF 50mm f/1.2L USM — full spec comparison
Spec Tamron 28-75mm f/2.8 Di III VXD G2 Canon RF 50mm f/1.2L USM

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

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

Canon RF 50mm f/1.2L USM

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

FAQ: Tamron 28-75mm f/2.8 Di III VXD G2 vs Canon RF 50mm f/1.2L USM

Which is better, Tamron 28-75mm f/2.8 Di III VXD G2 or Canon RF 50mm f/1.2L USM? +

Canon RF 50mm f/1.2L USM scores 96 on our weighted rubric — ahead by 8. Your best pick depends on the sub-scores above.

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.

Is Canon RF 50mm f/1.2L USM worth the price? +

At $2,299, Canon RF 50mm f/1.2L USM delivers a Specdex score of 96 — strongest in sharpness.

Does Tamron 28-75mm f/2.8 Di III VXD G2 or Canon RF 50mm f/1.2L USM 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 28-75mm f/2.8 Di III VXD G2 or Canon RF 50mm f/1.2L USM? +

Canon RF 50mm f/1.2L USM — leads on sharpness (96 vs 88). Compared on the sharpness sub-score.

Which is better for autofocus, Tamron 28-75mm f/2.8 Di III VXD G2 or Canon RF 50mm f/1.2L USM? +

Canon RF 50mm f/1.2L USM — leads on af (95 vs 87). Compared on the autofocus sub-score.