Canon - RF 50mm f/1.2L USM vs Tamron - 28-75mm f/2.8 Di III VXD G2
Between the RF 50mm f/1.2L USM and 28-75mm f/2.8 Di III VXD G2, the RF 50mm f/1.2L USM comes out ahead in min focal, while the 28-75mm f/2.8 Di III VXD G2 wins on weight and max focal. Overall, the RF 50mm f/1.2L USM scores 57.6 and the 28-75mm f/2.8 Di III VXD G2 scores 57.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (57.6 vs 57.1). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the RF 50mm f/1.2L USM if you care most about min focal. The biggest gaps in its favor are min focal.
Pick the 28-75mm f/2.8 Di III VXD G2 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, max focal.
Both ship with comparable weather sealed, optical stabilization, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Canon - RF 50mm f/1.2L USM wins
- ▲Min focal: 50 (vs 28).
Why Tamron - 28-75mm f/2.8 Di III VXD G2 wins
- ▲Weight — 410.00 g less. 540 vs 950.
- ▲Max focal: 75 (vs 50).
Spec comparison
Optics
| Spec | Canon - RF 50mm f/1.2L USM | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Min focal | 50 mmlead | 28 mm |
| Max focal | 50 mm | 75 mmlead |
| Max aperture | f/1.2 | f/2.8 |
| Min aperture | f/16 | f/22 |
Build
| Spec | Canon - RF 50mm f/1.2L USM | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Weight | 950 g | 540 glead |
| Weather sealedⓘ | true | true |
| Optical stabilizationⓘ | false | false |
Mount
| Spec | Canon - RF 50mm f/1.2L USM | Tamron - 28-75mm f/2.8 Di III VXD G2 |
|---|---|---|
| Lens mount | Canon RFlead | Sony E |
Frequently asked
Spec-level deep dives
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