Portretvergelijking in één oogopslag (bovenlichaam)
| Optical & Portrait Metric | Canon RF 45mm F1.2 STM | Canon RF 50mm F1.8 STM | What It Means in Practice |
|---|---|---|---|
| Upper-Body Working Distance | 1.82 m | 2.01 m | The Canon RF 50mm F1.8 STM requires 0.2 m more room behind you for the same subject size. |
| Effective Focal Length (Breathing) | 44.2 mm (-1.8%) | 51.4 mm (+2.8%) | Canon RF 45mm F1.2 STM frames like 44.2 mm (-1.8%) at 1.8 m; Canon RF 50mm F1.8 STM frames like 51.4 mm (+2.8%) at 2.0 m. |
| Depth of Field (Sharp Zone) | 17 cm (1.73 m – 1.91 m) | 26 cm (1.89 m – 2.15 m) | The Canon RF 45mm F1.2 STM has a 33% thinner focus zone (17 cm vs. 26 cm)—requiring more precise eye focus. |
| Entrance Pupil Diameter | 37.5 mm (f/1.2) | 27.8 mm (f/1.8) | Distant background blur discs are 35% larger on the Canon RF 45mm F1.2 STM. |
| Minimum Focus Distance | 0.4 m | 0.3 m | Canon RF 50mm F1.8 STM focuses 10 cm closer (0.4 m vs. 0.3 m) for tighter close-ups. |
| Patent Prescription | US20260194735A1 (9/7) | US20210263286A1 (6/5) | Published optical prescriptions traced in the 3D simulator above. |