Portrait At-a-Glance Comparison (Upper Body Framing)
| Optical & Portrait Metric | Fujifilm XF 23mm F1.4 R LM WR | Fujifilm XF 33mm F1.4 R LM WR | What It Means in Practice |
|---|---|---|---|
| Upper-Body Working Distance | 1.42 m | 2.03 m | The Fujifilm XF 33mm F1.4 R LM WR requires 0.6 m more room behind you for the same subject size. |
| Background Field of View (Compression) | 56° | 39° | Fujifilm XF 33mm F1.4 R LM WR shows a 30% narrower slice of the room behind the subject (39° vs. 56°), isolating them against a cleaner background. |
| Entrance Pupil Diameter | 16.4 mm (f/1.4) | 23.6 mm (f/1.4) | Distant background blur discs are 44% larger on the Fujifilm XF 33mm F1.4 R LM WR. |
| Corner Bokeh Roundness (90% Field) | 75% (-0.8 EV) | 80% (-0.5 EV) | Fujifilm XF 33mm F1.4 R LM WR keeps significantly rounder bokeh balls into the corners wide open (80% vs. 75% roundness). |
| Effective Focal Length (Breathing) | 22.3 mm (-3.0%) | 33.3 mm (+0.9%) | Fujifilm XF 23mm F1.4 R LM WR frames like 22.3 mm (-3.0%) at 1.4 m; Fujifilm XF 33mm F1.4 R LM WR frames like 33.3 mm (+0.9%) at 2.0 m. |
| Depth of Field (Sharp Zone) | 32 cm (1.28 m – 1.60 m) | 31 cm (1.89 m – 2.19 m) | The Fujifilm XF 33mm F1.4 R LM WR has a 2% thinner focus zone (32 cm vs. 31 cm)—requiring more precise eye focus. |
| Minimum Focus Distance | 0.19 m | 0.3 m | Fujifilm XF 23mm F1.4 R LM WR focuses 11 cm closer (0.19 m vs. 0.3 m) for tighter close-ups. |