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Leica Noctilux-M 50mm f/0.95 ASPH. — Bokeh & Optical Ray-Tracing Simulator
Interactive 3D portrait ray-traced through the published US20150192839A1 optical prescription (14 elements in 11 groups, 2 aspherical) with a 52.6 mm entrance pupil and 1 m minimum focus.
Optical & Portrait Specifications (Upper Body Framing)
| Optical & Portrait Metric | Measured / Patent Value | What It Means in Practice |
|---|---|---|
| Patent Prescription | US20150192839A1 · 14 elements in 11 groups (2 aspherical) | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 52.6 mm (at f/0.95) | Controls distant background blur disc size |
| Corner Bokeh Roundness (90% Field) | 46% at f/0.95 (≥86% from f/2.8) · -1.6 EV | Mechanical vignetting (cat’s-eye vs. round corner highlights) |
| Background Field of View (Compression) | 38° horizontal | Width of the background room visible behind the subject |
| Upper-Body Working Distance | 2.01 m | Camera-to-subject distance for head-to-waist framing |
| Effective Focal Length (Breathing) | 51.7 mm (+3.4%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 14 cm (1.95 m – 2.08 m) | Sharp zone at wide-open aperture |
| Minimum Focus Distance | 1 m | Closest focusing distance from the sensor |
Questions
How much background blur and corner cat's-eye does the Leica Noctilux-M 50mm f/0.95 ASPH. produce?
Wide open at f/0.95, the Leica Noctilux-M 50mm f/0.95 ASPH. has a 52.6 mm entrance pupil (50 mm ÷ 0.95) and 46% bokeh roundness in the 90% corner (-1.6 EV corner falloff, reaching ≥86% roundness from f/2.8). In an upper-body portrait at 2.01 m, the sharp depth-of-field zone spans 14 cm (1.95 m to 2.08 m) with a 38° horizontal background angle of view.
Does the Leica Noctilux-M 50mm f/0.95 ASPH. show focus breathing at portrait distance?
Based on patent US20150192839A1, tracing the focusing group at 2.01 m gives an effective framing focal length of 51.7 mm (+3.4% 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 Leica Noctilux-M 50mm f/0.95 ASPH.?
The patent prescription (US20150192839A1) specifies 14 lens elements in 11 groups with 2 aspherical surfaces. The interactive Optical X-Ray above traces rays through every surface in real time.
Related comparisons
- Leica Noctilux-M 50mm f/0.95 ASPH. vs. Leica Summilux-M 50mm f/1.4
- Leica Noctilux-M 50mm f/0.95 ASPH. vs. Leica APO-Summicron-M 50mm f/2 ASPH.
- Leica Noctilux-M 50mm f/0.95 ASPH. vs. Leica NOCTILUX 50mm f/1.2 ASPH
- Leica Noctilux-M 50mm f/0.95 ASPH. vs. Nikon NIKKOR Z 58mm f/0.95 S Noct
Compare with similar portrait lenses
- Canon 50mm f/0.95
- Canon 50mm f/1.0 L
- Sony FE 50mm F1.2 GM
- Nikon NIKKOR Z 50mm f/1.2 S
- Canon RF 50mm F1.2 L USM
- Sony FE 85mm f/1.8
Also see: depth of field, bokeh, crop factor, lens compression.