Canon
Canon EF 50mm f/1.4 USM
Prime/zoom
82
/ 100
From $379
VS
Canon RF 50mm f/1.2L USM wins by 14
Canon
Canon RF 50mm f/1.2L USM
Full-frame · 950 g · Pro portrait
96
/ 100
From $2,299
Specdex verdict
Canon RF 50mm f/1.2L USM takes it — here’s why.
In our weighted Specdex score, Canon EF 50mm f/1.4 USM lands at 82 and Canon RF 50mm f/1.2L USM at 96. That puts Canon RF 50mm f/1.2L USM ahead by 14 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Canon EF 50mm f/1.4 USM if…
- ✓Proven optical formula
- ✓Weather-sealing (L/GM/S)
- ✓Strong resale
Pick Canon RF 50mm f/1.2L USM if…
- ✓Breathtaking bokeh
- ✓Sharp wide open
- ✓Weather-sealed L build
Score breakdown
Canon EF 50mm f/1.4 USM
82 sharpness 82
af 78
build 90
value 86
Canon RF 50mm f/1.2L USM
96 sharpness 98
af 94
build 98
value 82
Specs side-by-side
Spec
Canon EF 50mm f/1.4 USM
Canon RF 50mm f/1.2L USM
Mount
—
Canon RF
Aperture
—
f/1.2
Weight
—
950 g
Filter size
—
77 mm
Canon EF 50mm f/1.4 USM
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 50mm f/1.2L USM
Pros
- +Breathtaking bokeh
- +Sharp wide open
- +Weather-sealed L build
Cons
- −Heavy at 950 g
- −Expensive
- −Breathing present
FAQ: Canon EF 50mm f/1.4 USM vs Canon RF 50mm f/1.2L USM
Which is better, Canon EF 50mm f/1.4 USM or Canon RF 50mm f/1.2L USM? +
Canon RF 50mm f/1.2L USM scores 96 on our weighted rubric — ahead by 14. Your best pick depends on the sub-scores above.
Is Canon EF 50mm f/1.4 USM worth the price? +
At $379, Canon EF 50mm f/1.4 USM delivers a Specdex score of 82 — strongest in build.
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.
Does Canon EF 50mm f/1.4 USM or Canon RF 50mm f/1.2L USM 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.