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Nikon AF-S 50mm f/1.4G — Simulatore di bokeh e ray-tracing ottico
Interactive 3D portrait ray-traced through the published JP2015-041003A optical prescription (9 elements in 7 groups) with a 35.7 mm entrance pupil and 0.45 m minimum focus.
Specifiche ottiche e ritratto (inquadratura mezzo busto)
| Optical & Portrait Metric | Measured / Patent Value | What It Means in Practice |
|---|---|---|
| Patent Prescription | JP2015-041003A · 9 elements in 7 groups | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 35.7 mm (at f/1.4) | Controls distant background blur disc size |
| Upper-Body Working Distance | 2.01 m | Camera-to-subject distance for head-to-waist framing |
| Effective Focal Length (Breathing) | 50.1 mm (+0.1%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 20 cm (1.92 m – 2.12 m) | Sharp zone at wide-open aperture |
| Minimum Focus Distance | 0.45 m | Closest focusing distance from the sensor |
Domande
How much background blur does the Nikon AF-S 50mm f/1.4G produce?
Wide open at f/1.4, the Nikon AF-S 50mm f/1.4G has a 35.7 mm entrance pupil (50 mm ÷ 1.4). In an upper-body portrait at 2.01 m, the sharp depth-of-field zone spans 20 cm (1.92 m to 2.12 m), while mechanical vignetting and 9 glass elements shape the out-of-focus highlights.
Does the Nikon AF-S 50mm f/1.4G show focus breathing at portrait distance?
Based on patent JP2015-041003A, tracing the focusing group at 2.01 m gives an effective framing focal length of 50.1 mm (+0.1% vs. the nominal 50 mm). You can toggle "Match subject size" in the simulator to see the framing shift live.
What optical design is inside the Nikon AF-S 50mm f/1.4G?
The patent prescription (JP2015-041003A) specifies 9 lens elements in 7 groups. The interactive Optical X-Ray above traces rays through every surface in real time.
Confronti diretti da brevetto con Nikon AF-S 50mm f/1.4G
Confronti collegati
- Nikon NIKKOR Z 50mm f/1.4
- Sony Planar FE 50mm F1.4 ZA
- Canon RF 50mm F1.4 L VCM
- Sony FE 90mm F2.8 Macro G OSS
- Nikon NIKKOR Z 35mm f/1.4
Vedi anche: profondità di campo, bokeh, fattore di crop, compressione.