Nikon NIKKOR Z 50mm f/1.2 S vs. Nikon NIKKOR Z 50mm f/1.4

Ray-traced side by side from their optical patents at a 2.0 m upper-body portrait distance: compare how the Nikon NIKKOR Z 50mm f/1.2 S (41.7 mm entrance pupil) and Nikon NIKKOR Z 50mm f/1.4 (35.7 mm entrance pupil) differ in background blur size, edge bokeh, and depth of field.

Caricamento della scena…

Modello ottico

Focale 50mm

GrandangoloTele

Diaframma f/2.8

Più sfocatoMeno sfocato

Distanza fotocamera 2.0 m

Più vicinoPiù lontano

Sensore 36.0 × 24.0 mm

Diaframma

Inquadratura

Scena

Confronto ritratto a colpo d’occhio (mezzo busto)

Optical & Portrait Metric	Nikon NIKKOR Z 50mm f/1.2 S	Nikon NIKKOR Z 50mm f/1.4	What It Means in Practice
Upper-Body Working Distance	2.01 m	2.01 m	Identical working distance—both frame an upper-body portrait from the exact same spot.
Effective Focal Length (Breathing)	49.0 mm (-1.9%)	49.0 mm (-2.0%)	At 2.0 m, Nikon NIKKOR Z 50mm f/1.2 S frames like a 49.0 mm lens while Nikon NIKKOR Z 50mm f/1.4 frames like a 49.0 mm lens.
Depth of Field (Sharp Zone)	17 cm (1.93 m – 2.10 m)	20 cm (1.92 m – 2.12 m)	The Nikon NIKKOR Z 50mm f/1.2 S has a 14% thinner focus zone (17 cm vs. 20 cm)—requiring more precise eye focus.
Entrance Pupil Diameter	41.7 mm (f/1.2)	35.7 mm (f/1.4)	Distant background blur discs are 17% larger on the Nikon NIKKOR Z 50mm f/1.2 S.
Minimum Focus Distance	0.45 m	0.37 m	Nikon NIKKOR Z 50mm f/1.4 focuses 8 cm closer (0.45 m vs. 0.37 m) for tighter close-ups.
Patent Prescription	WO2021241230A1 (17/15)	JP2026-035920A (13/9)	Published optical prescriptions traced in the 3D simulator above.

Domande

Which blurs the background more, Nikon NIKKOR Z 50mm f/1.2 S or Nikon NIKKOR Z 50mm f/1.4?

At the same subject framing, distant background blur scales with the entrance pupil diameter (focal length ÷ f-number). Nikon NIKKOR Z 50mm f/1.2 S at f/1.2 has a 41.7 mm entrance pupil, while Nikon NIKKOR Z 50mm f/1.4 at f/1.4 has a 35.7 mm entrance pupil.

How does working distance differ between Nikon NIKKOR Z 50mm f/1.2 S and Nikon NIKKOR Z 50mm f/1.4?

For an upper-body portrait, Nikon NIKKOR Z 50mm f/1.2 S stands 2.01 m from the subject (sharp zone 17 cm, from 1.93 m to 2.10 m), whereas Nikon NIKKOR Z 50mm f/1.4 stands 2.01 m away (sharp zone 20 cm, from 1.92 m to 2.12 m).

How do the optical designs of Nikon NIKKOR Z 50mm f/1.2 S and Nikon NIKKOR Z 50mm f/1.4 compare?

Nikon NIKKOR Z 50mm f/1.2 S uses 17 elements in 15 groups (WO2021241230A1, effective focal length 49.0 mm at portrait distance). Nikon NIKKOR Z 50mm f/1.4 uses 13 elements in 9 groups (JP2026-035920A, effective focal length 49.0 mm).

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Vedi anche: profondità di campo, bokeh, fattore di crop, compressione.