Tamron 50-400mm f/4.5-6.3 Di III VC VXD
Prime/zoom
Canon RF 50mm f/1.2L USM
Full-frame · 950 g · Pro portrait
Canon RF 50mm f/1.2L USM takes it — here’s why.
In our weighted Specdex score, Tamron 50-400mm f/4.5-6.3 Di III VC VXD lands at 87 and Canon RF 50mm f/1.2L USM at 96. That puts Canon RF 50mm f/1.2L USM ahead by 9 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Tamron 50-400mm f/4.5-6.3 Di III VC VXD 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
Specs side-by-side
Tamron 50-400mm f/4.5-6.3 Di III VC VXD
- +Proven optical formula
- +Weather-sealing (L/GM/S)
- +Strong resale
- −Mount-specific
- −Older AF motor on some
- −Heavier than modern counterparts
Canon RF 50mm f/1.2L USM
- +Breathtaking bokeh
- +Sharp wide open
- +Weather-sealed L build
- −Heavy at 950 g
- −Expensive
- −Breathing present
FAQ: Tamron 50-400mm f/4.5-6.3 Di III VC VXD vs Canon RF 50mm f/1.2L USM
Which is better, Tamron 50-400mm f/4.5-6.3 Di III VC VXD or Canon RF 50mm f/1.2L USM? +
Canon RF 50mm f/1.2L USM scores 96 on our weighted rubric — ahead by 9. Your best pick depends on the sub-scores above.
Is Tamron 50-400mm f/4.5-6.3 Di III VC VXD worth the price? +
At $1,299, Tamron 50-400mm f/4.5-6.3 Di III VC VXD delivers a Specdex score of 87 — 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 Tamron 50-400mm f/4.5-6.3 Di III VC VXD 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.