Portrait At-a-Glance Comparison (Upper Body Framing)
| Optical & Portrait Metric | Nikon NIKKOR Z 85mm f/1.2 S | Nikon NIKKOR Z 85mm f/1.8 S | What It Means in Practice |
|---|---|---|---|
| Upper-Body Working Distance | 3.41 m | 3.41 m | Identical working distance—both frame an upper-body portrait from the exact same spot. |
| Background Field of View (Compression) | 23° | 24° | Identical 23° horizontal background view behind the subject. |
| Entrance Pupil Diameter | 70.8 mm (f/1.2) | 47.2 mm (f/1.8) | Distant background blur discs are 50% larger on the Nikon NIKKOR Z 85mm f/1.2 S. |
| Corner Bokeh Roundness (90% Field) | 50% (-1.1 EV) | 69% (-0.5 EV) | Nikon NIKKOR Z 85mm f/1.8 S keeps significantly rounder bokeh balls into the corners wide open (69% vs. 50% roundness). |
| Effective Focal Length (Breathing) | 87.1 mm (+2.4%) | 83.7 mm (-1.6%) | At 3.4 m, Nikon NIKKOR Z 85mm f/1.2 S frames like a 87.1 mm lens while Nikon NIKKOR Z 85mm f/1.8 S frames like a 83.7 mm lens. |
| Depth of Field (Sharp Zone) | 17 cm (3.33 m – 3.49 m) | 25 cm (3.29 m – 3.54 m) | The Nikon NIKKOR Z 85mm f/1.2 S has a 33% thinner focus zone (17 cm vs. 25 cm)—requiring more precise eye focus. |
| Minimum Focus Distance | 0.85 m | 0.8 m | Nikon NIKKOR Z 85mm f/1.8 S focuses 5 cm closer (0.85 m vs. 0.8 m) for tighter close-ups. |