Comparaison portrait en un coup d’œil (cadrage buste)
| Optical & Portrait Metric | Nikon 58mm f/1.2 Noct-NIKKOR | Nikon 58mm f/1.4 G FX | What It Means in Practice |
|---|---|---|---|
| Upper-Body Working Distance | 2.33 m | 2.33 m | Identical working distance—both frame an upper-body portrait from the exact same spot. |
| Effective Focal Length (Breathing) | 58.0 mm (-0.0%) | 58.6 mm (+1.0%) | At 2.3 m, Nikon 58mm f/1.2 Noct-NIKKOR frames like a 58.0 mm lens while Nikon 58mm f/1.4 G FX frames like a 58.6 mm lens. |
| Depth of Field (Sharp Zone) | 17 cm (2.25 m – 2.42 m) | 20 cm (2.24 m – 2.44 m) | The Nikon 58mm f/1.2 Noct-NIKKOR has a 14% thinner focus zone (17 cm vs. 20 cm)—requiring more precise eye focus. |
| Entrance Pupil Diameter | 48.3 mm (f/1.2) | 41.4 mm (f/1.4) | Distant background blur discs are 17% larger on the Nikon 58mm f/1.2 Noct-NIKKOR. |
| Minimum Focus Distance | 0.5 m | 0.58 m | Nikon 58mm f/1.2 Noct-NIKKOR focuses 8 cm closer (0.5 m vs. 0.58 m) for tighter close-ups. |
| Patent Prescription | US4621909A (7/6) | JP2013-019993A (9/5) | Published optical prescriptions traced in the 3D simulator above. |