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Nikon NIKKOR Z 135mm f/1.8 S Plena — Bokeh & Optical Ray-Tracing Simulator
Interactive 3D portrait ray-traced through the published WO2024147268A1 optical prescription (16 elements in 14 groups, 1 aspherical) with a 75.0 mm entrance pupil and 0.82 m minimum focus.
Optical & Portrait Specifications (Upper Body Framing)
| Optical & Portrait Metric | Measured / Patent Value | What It Means in Practice |
|---|---|---|
| Patent Prescription | WO2024147268A1 · 16 elements in 14 groups (1 aspherical) | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 75.0 mm (at f/1.8) | Controls distant background blur disc size |
| Corner Bokeh Roundness (90% Field) | 100% at f/1.8 · 0.0 EV | Mechanical vignetting (cat’s-eye vs. round corner highlights) |
| Background Field of View (Compression) | 16° horizontal | Width of the background room visible behind the subject |
| Upper-Body Working Distance | 5.40 m | Camera-to-subject distance for head-to-waist framing |
| Effective Focal Length (Breathing) | 130.2 mm (-3.6%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 25 cm (5.28 m – 5.53 m) | Sharp zone at wide-open aperture |
| Minimum Focus Distance | 0.82 m | Closest focusing distance from the sensor |
Questions
How much background blur and corner cat's-eye does the Nikon NIKKOR Z 135mm f/1.8 S Plena produce?
Wide open at f/1.8, the Nikon NIKKOR Z 135mm f/1.8 S Plena has a 75.0 mm entrance pupil (135 mm ÷ 1.8) and 100% bokeh roundness in the 90% corner (0.0 EV corner falloff). In an upper-body portrait at 5.40 m, the sharp depth-of-field zone spans 25 cm (5.28 m to 5.53 m) with a 16° horizontal background angle of view.
Does the Nikon NIKKOR Z 135mm f/1.8 S Plena show focus breathing at portrait distance?
Based on patent WO2024147268A1, tracing the focusing group at 5.40 m gives an effective framing focal length of 130.2 mm (-3.6% vs. the nominal 135 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 135mm f/1.8 S Plena?
The patent prescription (WO2024147268A1) specifies 16 lens elements in 14 groups with 1 aspherical surfaces. The interactive Optical X-Ray above traces rays through every surface in real time.
Related comparisons
- Nikon NIKKOR Z 135mm f/1.8 S Plena vs. Nikon NIKKOR Z 58mm f/0.95 S Noct
- Nikon NIKKOR Z 135mm f/1.8 S Plena vs. Nikon NIKKOR Z 85mm f/1.2 S
- Nikon NIKKOR Z 135mm f/1.8 S Plena vs. Canon RF 135mm F1.8 L IS USM
- Nikon NIKKOR Z 135mm f/1.8 S Plena vs. Nikon 105mm f/1.4 FX
- Nikon NIKKOR Z 135mm f/1.8 S Plena vs. Nikon AF DC 135mm f/2D
- Nikon NIKKOR Z 135mm f/1.8 S Plena vs. Sony FE 135mm F1.8 GM
Compare with similar portrait lenses
- Sony FE 135mm F1.8 GM
- Nikon NIKKOR 135mm f/2 AI-s
- Nikon AF DC 135mm f/2D
- Canon RF 135mm F1.8 L IS USM
- Pentax SMC Pentax-A* 135mm f/1.8
- Nikon 105mm f/1.4 FX
Also see: depth of field, bokeh, crop factor, lens compression.