Skip to content
Specdex
Compare now
Canon RF 24mm f/1.8 Macro — Prime/Zoom
Canon

Canon RF 24mm f/1.8 Macro

Prime/Zoom

86
/ 100
From $599
VS
Sigma 100-400mm DG DN OS — Prime/zoom
Sigma

Sigma 100-400mm DG DN OS

Prime/zoom

86
/ 100
From $999
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Canon RF 24mm f/1.8 Macro lands at 86 and Sigma 100-400mm DG DN OS at 86. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick Canon RF 24mm f/1.8 Macro if…

  • ✓Fast aperture
  • ✓Quiet autofocus
  • ✓Weather-sealed (most)

Pick Sigma 100-400mm DG DN OS if…

  • ✓Proven optical formula
  • ✓Weather-sealing (L/GM/S)
  • ✓Strong resale
Share this comparison: Share to Reddit X / Twitter

Winner by scenario

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

Build

Sigma 100-400mm DG DN OS

Compared on the build sub-score

Sigma 100-400mm DG DN OS leads on build (90 vs 88).

Sharpness

Tie

Compared on the sharpness sub-score

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

Autofocus

Canon RF 24mm f/1.8 Macro

Compared on the autofocus sub-score

Canon RF 24mm f/1.8 Macro leads on af (84 vs 82).

Value for money

Canon RF 24mm f/1.8 Macro

Specdex score per dollar at MSRP

Canon RF 24mm f/1.8 Macro more score per dollar ($599 vs $999).

Canon RF 24mm f/1.8 Macro 86
vs
86 Sigma 100-400mm DG DN OS

Score breakdown

Canon RF 24mm f/1.8 Macro
86
sharpness 86
af 84
build 88
value 85
Sigma 100-400mm DG DN OS
86
sharpness 86
af 82
build 90
value 86

Specs side-by-side

Canon RF 24mm f/1.8 Macro versus Sigma 100-400mm DG DN OS — full spec comparison
Spec Canon RF 24mm f/1.8 Macro Sigma 100-400mm DG DN OS

Canon RF 24mm f/1.8 Macro

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

Sigma 100-400mm DG DN OS

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

FAQ: Canon RF 24mm f/1.8 Macro vs Sigma 100-400mm DG DN OS

Which is better, Canon RF 24mm f/1.8 Macro or Sigma 100-400mm DG DN OS? +

Both score 86 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

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.

Is Sigma 100-400mm DG DN OS worth the price? +

At $999, Sigma 100-400mm DG DN OS delivers a Specdex score of 86 — strongest in build.

Does Canon RF 24mm f/1.8 Macro or Sigma 100-400mm DG DN OS 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, Canon RF 24mm f/1.8 Macro or Sigma 100-400mm DG DN OS? +

Sigma 100-400mm DG DN OS — leads on build (90 vs 88). Compared on the build sub-score.

Which is better for autofocus, Canon RF 24mm f/1.8 Macro or Sigma 100-400mm DG DN OS? +

Canon RF 24mm f/1.8 Macro — leads on af (84 vs 82). Compared on the autofocus sub-score.