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Canon RF 50mm f/1.2L USM — Full-frame · 950 g · Pro portrait
Canon

Canon RF 50mm f/1.2L USM

Full-frame · 950 g · Pro portrait

96
/ 100
From $2,299
VS
Canon RF 50mm f/1.2L USM wins by 3
Sony FE 100-400mm f/4.5-5.6 GM OSS — Prime/Zoom
Sony

Sony FE 100-400mm f/4.5-5.6 GM OSS

Prime/Zoom

93
/ 100
From $2,498
Specdex verdict

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

In our weighted Specdex score, Canon RF 50mm f/1.2L USM lands at 96 and Sony FE 100-400mm f/4.5-5.6 GM OSS at 93. That puts Canon RF 50mm f/1.2L USM ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Canon RF 50mm f/1.2L USM if…

  • ✓Breathtaking bokeh
  • ✓Sharp wide open
  • ✓Weather-sealed L build

Pick Sony FE 100-400mm f/4.5-5.6 GM OSS 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

Canon RF 50mm f/1.2L USM

Compared on the build sub-score

Canon RF 50mm f/1.2L USM leads on build (98 vs 94).

Sharpness

Canon RF 50mm f/1.2L USM

Compared on the sharpness sub-score

Canon RF 50mm f/1.2L USM leads on sharpness (98 vs 93).

Autofocus

Canon RF 50mm f/1.2L USM

Compared on the autofocus sub-score

Canon RF 50mm f/1.2L USM leads on af (94 vs 92).

Value for money

Canon RF 50mm f/1.2L USM

Specdex score per dollar at MSRP

Canon RF 50mm f/1.2L USM more score per dollar ($2,299 vs $2,498).

Canon RF 50mm f/1.2L USM 96
vs
93 Sony FE 100-400mm f/4.5-5.6 GM OSS

Score breakdown

Canon RF 50mm f/1.2L USM
96
sharpness 98
af 94
build 98
value 82
Sony FE 100-400mm f/4.5-5.6 GM OSS
93
sharpness 93
af 92
build 94
value 84

Specs side-by-side

Canon RF 50mm f/1.2L USM versus Sony FE 100-400mm f/4.5-5.6 GM OSS — full spec comparison
Spec Canon RF 50mm f/1.2L USM Sony FE 100-400mm f/4.5-5.6 GM OSS
Mount
Canon RF
—
Aperture
f/1.2
—
Weight
950 g
—
Filter size
77 mm
—

Canon RF 50mm f/1.2L USM

Pros
  • +Breathtaking bokeh
  • +Sharp wide open
  • +Weather-sealed L build
Cons
  • −Heavy at 950 g
  • −Expensive
  • −Breathing present

Sony FE 100-400mm f/4.5-5.6 GM OSS

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

FAQ: Canon RF 50mm f/1.2L USM vs Sony FE 100-400mm f/4.5-5.6 GM OSS

Which is better, Canon RF 50mm f/1.2L USM or Sony FE 100-400mm f/4.5-5.6 GM OSS? +

Canon RF 50mm f/1.2L USM scores 96 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.

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.

Is Sony FE 100-400mm f/4.5-5.6 GM OSS worth the price? +

At $2,498, Sony FE 100-400mm f/4.5-5.6 GM OSS delivers a Specdex score of 93 — strongest in build.

Does Canon RF 50mm f/1.2L USM or Sony FE 100-400mm f/4.5-5.6 GM OSS 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 50mm f/1.2L USM or Sony FE 100-400mm f/4.5-5.6 GM OSS? +

Canon RF 50mm f/1.2L USM — leads on build (98 vs 94). Compared on the build sub-score.

Which is better for sharpness, Canon RF 50mm f/1.2L USM or Sony FE 100-400mm f/4.5-5.6 GM OSS? +

Canon RF 50mm f/1.2L USM — leads on sharpness (98 vs 93). Compared on the sharpness sub-score.