Portrait At-a-Glance Comparison (Upper Body Framing)
| Optical & Portrait Metric | Canon RF 24mm F1.4 L VCM | Canon RF 35mm F1.4 L VCM | What It Means in Practice |
|---|---|---|---|
| Upper-Body Working Distance | 0.99 m | 1.42 m | The Canon RF 35mm F1.4 L VCM requires 0.4 m more room behind you for the same subject size. |
| Background Field of View (Compression) | 75° | 55° | Canon RF 35mm F1.4 L VCM shows a 27% narrower slice of the room behind the subject (55° vs. 75°), isolating them against a cleaner background. |
| Entrance Pupil Diameter | 17.1 mm (f/1.4) | 25.0 mm (f/1.4) | Distant background blur discs are 46% larger on the Canon RF 35mm F1.4 L VCM. |
| Corner Bokeh Roundness (90% Field) | 47% (-1.7 EV) | 70% (-0.8 EV) | Canon RF 35mm F1.4 L VCM keeps significantly rounder bokeh balls into the corners wide open (70% vs. 47% roundness). |
| Effective Focal Length (Breathing) | 23.7 mm (-1.4%) | 34.7 mm (-0.7%) | Canon RF 24mm F1.4 L VCM frames like 23.7 mm (-1.4%) at 1.0 m; Canon RF 35mm F1.4 L VCM frames like 34.7 mm (-0.7%) at 1.4 m. |
| Depth of Field (Sharp Zone) | 21 cm (90 cm – 1.11 m) | 20 cm (1.33 m – 1.53 m) | The Canon RF 35mm F1.4 L VCM has a 4% thinner focus zone (21 cm vs. 20 cm)—requiring more precise eye focus. |
| Minimum Focus Distance | 0.24 m | 0.28 m | Canon RF 24mm F1.4 L VCM focuses 4 cm closer (0.24 m vs. 0.28 m) for tighter close-ups. |