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Tamron 20-40mm f/2.8 Di III VXD — Prime/zoom
Tamron

Tamron 20-40mm f/2.8 Di III VXD

Prime/zoom

85
/ 100
From $699
VS
Canon RF 24mm f/1.8 Macro wins by 1
Canon RF 24mm f/1.8 Macro — Prime/Zoom
Canon

Canon RF 24mm f/1.8 Macro

Prime/Zoom

86
/ 100
From $599
Specdex verdict

Canon RF 24mm f/1.8 Macro takes it — here’s why.

In our weighted Specdex score, Tamron 20-40mm f/2.8 Di III VXD lands at 85 and Canon RF 24mm f/1.8 Macro at 86. That puts Canon RF 24mm f/1.8 Macro ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Tamron 20-40mm f/2.8 Di III VXD if…

  • Proven optical formula
  • Weather-sealing (L/GM/S)
  • Strong resale

Pick Canon RF 24mm f/1.8 Macro if…

  • Fast aperture
  • Quiet autofocus
  • Weather-sealed (most)
Tamron 20-40mm f/2.8 Di III VXD 85
vs
86 Canon RF 24mm f/1.8 Macro

Score breakdown

Tamron 20-40mm f/2.8 Di III VXD
85
sharpness 85
af 81
build 90
value 86
Canon RF 24mm f/1.8 Macro
86
sharpness 86
af 84
build 88
value 85

Specs side-by-side

Tamron 20-40mm f/2.8 Di III VXD versus Canon RF 24mm f/1.8 Macro — full spec comparison
Spec Tamron 20-40mm f/2.8 Di III VXD Canon RF 24mm f/1.8 Macro

Tamron 20-40mm f/2.8 Di III VXD

Pros
  • +Proven optical formula
  • +Weather-sealing (L/GM/S)
  • +Strong resale
Cons
  • Mount-specific
  • Older AF motor on some
  • Heavier than modern counterparts

Canon RF 24mm f/1.8 Macro

Pros
  • +Fast aperture
  • +Quiet autofocus
  • +Weather-sealed (most)
Cons
  • Mount-specific
  • Weight varies
  • Price scales with quality

FAQ: Tamron 20-40mm f/2.8 Di III VXD vs Canon RF 24mm f/1.8 Macro

Which is better, Tamron 20-40mm f/2.8 Di III VXD or Canon RF 24mm f/1.8 Macro? +

Canon RF 24mm f/1.8 Macro scores 86 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.

Is Tamron 20-40mm f/2.8 Di III VXD worth the price? +

At $699, Tamron 20-40mm f/2.8 Di III VXD delivers a Specdex score of 85 — strongest in build.

Is Canon RF 24mm f/1.8 Macro worth the price? +

At $599, Canon RF 24mm f/1.8 Macro delivers a Specdex score of 86 — strongest in build.

Does Tamron 20-40mm f/2.8 Di III VXD or Canon RF 24mm f/1.8 Macro 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.