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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 6
Sony FE 20mm f/1.8 G — Prime/Zoom
Sony

Sony FE 20mm f/1.8 G

Prime/Zoom

90
/ 100
From $898
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 20mm f/1.8 G at 90. That puts Canon RF 50mm f/1.2L USM ahead by 6 points — a decisive 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 20mm f/1.8 G if…

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

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

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 90).

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 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 (94 vs 88).

Value for money

Sony FE 20mm f/1.8 G

Specdex score per dollar at MSRP

Sony FE 20mm f/1.8 G more score per dollar ($898 vs $2,299).

Canon RF 50mm f/1.2L USM 96
vs
90 Sony FE 20mm f/1.8 G

Score breakdown

Canon RF 50mm f/1.2L USM
96
sharpness 98
af 94
build 98
value 82
Sony FE 20mm f/1.8 G
90
sharpness 90
af 88
build 88
value 85

Specs side-by-side

Canon RF 50mm f/1.2L USM versus Sony FE 20mm f/1.8 G — full spec comparison
Spec Canon RF 50mm f/1.2L USM Sony FE 20mm f/1.8 G
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 20mm f/1.8 G

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

FAQ: Canon RF 50mm f/1.2L USM vs Sony FE 20mm f/1.8 G

Which is better, Canon RF 50mm f/1.2L USM or Sony FE 20mm f/1.8 G? +

Canon RF 50mm f/1.2L USM scores 96 on our weighted rubric — ahead by 6. 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 20mm f/1.8 G worth the price? +

At $898, Sony FE 20mm f/1.8 G delivers a Specdex score of 90 — strongest in sharpness.

Does Canon RF 50mm f/1.2L USM or Sony FE 20mm f/1.8 G 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, Canon RF 50mm f/1.2L USM or Sony FE 20mm f/1.8 G? +

Canon RF 50mm f/1.2L USM — leads on sharpness (98 vs 90). Compared on the sharpness sub-score.

Which is better for build, Canon RF 50mm f/1.2L USM or Sony FE 20mm f/1.8 G? +

Canon RF 50mm f/1.2L USM — leads on build (98 vs 88). Compared on the build sub-score.