Canon - RF 50mm f/1.2L USM vs Sony - FE 16-35mm f/2.8 GM II
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Canon - RF 50mm f/1.2L USM | Sony - FE 16-35mm f/2.8 GM II |
|---|---|---|
| Weight | 950 g | 547 g |
| Min focal | 50 mm | 16 mm |
| Max focal | 50 mm | 35 mm |
Between the RF 50mm f/1.2L USM and FE 16-35mm f/2.8 GM II, the RF 50mm f/1.2L USM comes out ahead in min focal / max focal, while the FE 16-35mm f/2.8 GM II wins on weight. Overall, the RF 50mm f/1.2L USM scores 65.4 and the FE 16-35mm f/2.8 GM II scores 62.8 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (65.4 vs 62.8). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the RF 50mm f/1.2L USM if you care most about min focal / max focal. The biggest gaps in its favor are min focal, max focal. The single most decisive one: Min focal: 50 (vs 16).
Pick the FE 16-35mm f/2.8 GM II if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight. The single most decisive one: Weight — 403.00 g less. 547 vs 950.
Both ship with comparable weather sealed, optical stabilization, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Canon - RF 50mm f/1.2L USM or Sony - FE 16-35mm f/2.8 GM II?
Canon - RF 50mm f/1.2L USM leads the current Mars Score by 2.6 points.The more useful decision is the trade-off behind that result: compare min focal, max focal, weight against the way you will actually use the product.
Choose Canon - RF 50mm f/1.2L USM if…
Canon - RF 50mm f/1.2L USM has the measurable edge on focal min mm, focal max mm.
Choose Sony - FE 16-35mm f/2.8 GM II if…
Sony - FE 16-35mm f/2.8 GM II has the measurable edge on weight g.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Canon - RF 50mm f/1.2L USM wins
- ▲Min focal: 50 (vs 16).
- ▲Max focal: 50 (vs 35).
Why Sony - FE 16-35mm f/2.8 GM II wins
- ▲Weight — 403.00 g less. 547 vs 950.
Spec comparison
Optics
| Spec | Canon - RF 50mm f/1.2L USM | Sony - FE 16-35mm f/2.8 GM II |
|---|---|---|
| Min focal | 50 mmlead | 16 mm |
| Max focal | 50 mmlead | 35 mm |
| Max aperture | f/1.2 | f/2.8 |
| Min aperture | f/16 | f/22 |
Build
| Spec | Canon - RF 50mm f/1.2L USM | Sony - FE 16-35mm f/2.8 GM II |
|---|---|---|
| Weight | 950 g | 547 glead |
| Weather sealedⓘ | true | true |
| Optical stabilizationⓘ | false | false |
Mount
| Spec | Canon - RF 50mm f/1.2L USM | Sony - FE 16-35mm f/2.8 GM II |
|---|---|---|
| Lens mount | Canon RFlead | Sony E |