Canon
Canon EF 50mm f/1.4 USM
Prime/zoom
82
/ 100
From $379
VS
Canon
Canon RF 50mm f/1.8
Prime/Zoom
82
/ 100
From $199
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Canon EF 50mm f/1.4 USM lands at 82 and Canon RF 50mm f/1.8 at 82. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Canon EF 50mm f/1.4 USM if…
- ✓Proven optical formula
- ✓Weather-sealing (L/GM/S)
- ✓Strong resale
Pick Canon RF 50mm f/1.8 if…
- ✓Fast aperture
- ✓Quiet autofocus
- ✓Weather-sealed (most)
Canon EF 50mm f/1.4 USM 82
vs 82 Canon RF 50mm f/1.8
Score breakdown
Canon EF 50mm f/1.4 USM
82 sharpness 82
af 78
build 90
value 86
Canon RF 50mm f/1.8
82 sharpness 82
af 80
build 88
value 85
Specs side-by-side
| Spec | Canon EF 50mm f/1.4 USM | Canon RF 50mm f/1.8 |
|---|
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/1.8
Pros
- +Fast aperture
- +Quiet autofocus
- +Weather-sealed (most)
Cons
- −Mount-specific
- −Weight varies
- −Price scales with quality
FAQ: Canon EF 50mm f/1.4 USM vs Canon RF 50mm f/1.8
Which is better, Canon EF 50mm f/1.4 USM or Canon RF 50mm f/1.8? +
Both score 82 on our weighted rubric — tied. 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/1.8 worth the price? +
At $199, Canon RF 50mm f/1.8 delivers a Specdex score of 82 — strongest in build.
Does Canon EF 50mm f/1.4 USM or Canon RF 50mm f/1.8 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.