Find a lens for this look
eBay links may earn us a commission, at no extra cost to you.
Matching lenses from each maker's lineup, plus some classic medium and large format lenses. Email me if something is wrong or missing.
Nikon NIKKOR Z 35mm f/1.8 S — Bokeh & Optical Ray-Tracing Simulator
Interactive 3D portrait ray-traced through the published JP2019-090947A optical prescription (11 elements in 9 groups, 6 aspherical) with a 19.4 mm entrance pupil and 0.25 m minimum focus.
Optical & Portrait Specifications (Upper Body Framing)
| Optical & Portrait Metric | Measured / Patent Value | What It Means in Practice |
|---|---|---|
| Patent Prescription | JP2019-090947A · 11 elements in 9 groups (6 aspherical) | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 19.4 mm (at f/1.8) | Controls distant background blur disc size |
| Upper-Body Working Distance | 1.42 m | Camera-to-subject distance for head-to-waist framing |
| Effective Focal Length (Breathing) | 34.3 mm (-1.9%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 26 cm (1.30 m – 1.56 m) | Sharp zone at wide-open aperture |
| Minimum Focus Distance | 0.25 m | Closest focusing distance from the sensor |
Questions
How much background blur does the Nikon NIKKOR Z 35mm f/1.8 S produce?
Wide open at f/1.8, the Nikon NIKKOR Z 35mm f/1.8 S has a 19.4 mm entrance pupil (35 mm ÷ 1.8). In an upper-body portrait at 1.42 m, the sharp depth-of-field zone spans 26 cm (1.30 m to 1.56 m), while mechanical vignetting and 11 glass elements shape the out-of-focus highlights.
Does the Nikon NIKKOR Z 35mm f/1.8 S show focus breathing at portrait distance?
Based on patent JP2019-090947A, tracing the focusing group at 1.42 m gives an effective framing focal length of 34.3 mm (-1.9% vs. the nominal 35 mm). You can toggle "Match subject size" in the simulator to see the framing shift live.
What optical design is inside the Nikon NIKKOR Z 35mm f/1.8 S?
The patent prescription (JP2019-090947A) specifies 11 lens elements in 9 groups with 6 aspherical surfaces. The interactive Optical X-Ray above traces rays through every surface in real time.
Head-to-head patent comparisons with Nikon NIKKOR Z 35mm f/1.8 S
- Nikon NIKKOR Z 35mm f/1.8 S vs. Nikon NIKKOR Z 35mm f/1.2 S
- Nikon NIKKOR Z 35mm f/1.8 S vs. Nikon NIKKOR Z 35mm f/1.4
- Nikon NIKKOR Z 35mm f/1.8 S vs. Nikon NIKKOR Z 50mm f/1.8 S
- Nikon NIKKOR Z 35mm f/1.8 S vs. Nikon NIKKOR Z 24mm f/1.8 S
Related comparisons
Also see: depth of field, bokeh, crop factor, lens compression.