Skip to content
Specdex
Compare now
Canon RF 800mm f/11 IS STM — Prime/Zoom
Canon

Canon RF 800mm f/11 IS STM

Prime/Zoom

82
/ 100
From $899
VS
Canon RF 800mm f/11 IS STM wins by 2
Rokinon 14mm f/2.8 IF ED UMC — Prime/zoom
Rokinon

Rokinon 14mm f/2.8 IF ED UMC

Prime/zoom

80
/ 100
From $399
Specdex verdict

Canon RF 800mm f/11 IS STM takes it — here’s why.

In our weighted Specdex score, Canon RF 800mm f/11 IS STM lands at 82 and Rokinon 14mm f/2.8 IF ED UMC at 80. That puts Canon RF 800mm f/11 IS STM ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Canon RF 800mm f/11 IS STM if…

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

Pick Rokinon 14mm f/2.8 IF ED UMC 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

Rokinon 14mm f/2.8 IF ED UMC

Compared on the build sub-score

Rokinon 14mm f/2.8 IF ED UMC leads on build (90 vs 88).

Sharpness

Canon RF 800mm f/11 IS STM

Compared on the sharpness sub-score

Canon RF 800mm f/11 IS STM leads on sharpness (82 vs 80).

Autofocus

Canon RF 800mm f/11 IS STM

Compared on the autofocus sub-score

Canon RF 800mm f/11 IS STM leads on af (80 vs 76).

Value for money

Rokinon 14mm f/2.8 IF ED UMC

Specdex score per dollar at MSRP

Rokinon 14mm f/2.8 IF ED UMC more score per dollar ($399 vs $899).

Canon RF 800mm f/11 IS STM 82
vs
80 Rokinon 14mm f/2.8 IF ED UMC

Score breakdown

Canon RF 800mm f/11 IS STM
82
sharpness 82
af 80
build 88
value 85
Rokinon 14mm f/2.8 IF ED UMC
80
sharpness 80
af 76
build 90
value 86

Specs side-by-side

Canon RF 800mm f/11 IS STM versus Rokinon 14mm f/2.8 IF ED UMC — full spec comparison
Spec Canon RF 800mm f/11 IS STM Rokinon 14mm f/2.8 IF ED UMC

Canon RF 800mm f/11 IS STM

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

Rokinon 14mm f/2.8 IF ED UMC

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 800mm f/11 IS STM vs Rokinon 14mm f/2.8 IF ED UMC

Which is better, Canon RF 800mm f/11 IS STM or Rokinon 14mm f/2.8 IF ED UMC? +

Canon RF 800mm f/11 IS STM scores 82 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Canon RF 800mm f/11 IS STM worth the price? +

At $899, Canon RF 800mm f/11 IS STM delivers a Specdex score of 82 — strongest in build.

Is Rokinon 14mm f/2.8 IF ED UMC worth the price? +

At $399, Rokinon 14mm f/2.8 IF ED UMC delivers a Specdex score of 80 — strongest in build.

Does Canon RF 800mm f/11 IS STM or Rokinon 14mm f/2.8 IF ED UMC 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 800mm f/11 IS STM or Rokinon 14mm f/2.8 IF ED UMC? +

Rokinon 14mm f/2.8 IF ED UMC — leads on build (90 vs 88). Compared on the build sub-score.

Which is better for sharpness, Canon RF 800mm f/11 IS STM or Rokinon 14mm f/2.8 IF ED UMC? +

Canon RF 800mm f/11 IS STM — leads on sharpness (82 vs 80). Compared on the sharpness sub-score.