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Fujifilm XF 30mm F2.8 R LM WR Macro — Bokeh & Optical Ray-Tracing Simulator
Interactive 3D portrait ray-traced through the published CN116500768A optical prescription (11 elements in 9 groups, 6 aspherical) with a 10.7 mm entrance pupil and 0.1 m minimum focus.
Optical & Portrait Specifications (Upper Body Framing)
| Optical & Portrait Metric | Measured / Patent Value | What It Means in Practice |
|---|---|---|
| Patent Prescription | CN116500768A · 11 elements in 9 groups (6 aspherical) | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 10.7 mm (at f/2.8) | Controls distant background blur disc size |
| Corner Bokeh Roundness (90% Field) | 44% at f/2.8 · -1.9 EV | Mechanical vignetting (cat’s-eye vs. round corner highlights) |
| Background Field of View (Compression) | 43° horizontal | Width of the background room visible behind the subject |
| Upper-Body Working Distance | 1.85 m | Camera-to-subject distance for head-to-waist framing |
| Effective Focal Length (Breathing) | 30.3 mm (+0.8%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 63 cm (1.58 m – 2.22 m) | Sharp zone at wide-open aperture |
| Minimum Focus Distance | 0.1 m | Closest focusing distance from the sensor |
Questions
How much background blur and corner cat's-eye does the Fujifilm XF 30mm F2.8 R LM WR Macro produce?
Wide open at f/2.8, the Fujifilm XF 30mm F2.8 R LM WR Macro has a 10.7 mm entrance pupil (30 mm ÷ 2.8) and 44% bokeh roundness in the 90% corner (-1.9 EV corner falloff). In an upper-body portrait at 1.85 m, the sharp depth-of-field zone spans 63 cm (1.58 m to 2.22 m) with a 43° horizontal background angle of view.
Does the Fujifilm XF 30mm F2.8 R LM WR Macro show focus breathing at portrait distance?
Based on patent CN116500768A, tracing the focusing group at 1.85 m gives an effective framing focal length of 30.3 mm (+0.8% vs. the nominal 30 mm). You can toggle "Match subject size" in the simulator to see the framing shift live.
What optical design is inside the Fujifilm XF 30mm F2.8 R LM WR Macro?
The patent prescription (CN116500768A) 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.
Related comparisons
- Fujifilm XF 33mm F1.4 R LM WR
- Fujifilm XF 27mm F2.8 R WR
- Fujifilm XF 35mm F1.4 R
- Fujifilm XF 35mm F2 R WR
- Fujifilm XF 23mm F1.4 R LM WR
- Fujifilm XF 23mm F2 R WR
Compare with similar portrait lenses
- Sony E 30mm F3.5 Macro
- Nikon NIKKOR Z 28mm f/2.8
- Nikon 28mm f/2.8 AI-s
- Nikon AF 28mm f/2.8D
- Canon EF-M 22mm f/2 STM
Also see: depth of field, bokeh, crop factor, lens compression.