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Fujifilm GF 500mm F5.6 R LM OIS WR — Bokeh & Optical Ray-Tracing Simulator
Interactive 3D portrait ray-traced through the published WO2025013477A1 optical prescription (21 elements in 14 groups) with a 89.3 mm entrance pupil and 2.75 m minimum focus.
Optical & Portrait Specifications (Upper Body Framing)
| Optical & Portrait Metric | Measured / Patent Value | What It Means in Practice |
|---|---|---|
| Patent Prescription | WO2025013477A1 · 21 elements in 14 groups | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 89.3 mm (at f/5.6) | Controls distant background blur disc size |
| Corner Bokeh Roundness (90% Field) | 66% at f/5.6 · -0.6 EV | Mechanical vignetting (cat’s-eye vs. round corner highlights) |
| Background Field of View (Compression) | 4° horizontal | Width of the background room visible behind the subject |
| Upper-Body Working Distance | 16.43 m | Camera-to-subject distance for head-to-waist framing |
| Effective Focal Length (Breathing) | 578.7 mm (+15.7%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 64 cm (16 m – 17 m) | Sharp zone at wide-open aperture |
| Minimum Focus Distance | 2.75 m | Closest focusing distance from the sensor |
Questions
How much background blur and corner cat's-eye does the Fujifilm GF 500mm F5.6 R LM OIS WR produce?
Wide open at f/5.6, the Fujifilm GF 500mm F5.6 R LM OIS WR has a 89.3 mm entrance pupil (500 mm ÷ 5.6) and 66% bokeh roundness in the 90% corner (-0.6 EV corner falloff). In an upper-body portrait at 16.43 m, the sharp depth-of-field zone spans 64 cm (16 m to 17 m) with a 4° horizontal background angle of view.
Does the Fujifilm GF 500mm F5.6 R LM OIS WR show focus breathing at portrait distance?
Based on patent WO2025013477A1, tracing the focusing group at 16.43 m gives an effective framing focal length of 578.7 mm (+15.7% vs. the nominal 500 mm). You can toggle "Match subject size" in the simulator to see the framing shift live.
What optical design is inside the Fujifilm GF 500mm F5.6 R LM OIS WR?
The patent prescription (WO2025013477A1) specifies 21 lens elements in 14 groups. The interactive Optical X-Ray above traces rays through every surface in real time.
Related comparisons
- 50mm vs 200mm focal length comparison
- 70mm vs 200mm focal length comparison
- 85mm vs 200mm focal length comparison
- 105mm vs 200mm focal length comparison
- 135mm vs 200mm focal length comparison
- 135mm medium format vs 105mm full frame focal length comparison
Compare with similar portrait lenses
- Nikon AF-S 500mm f/4E FL ED VR
- Canon 500mm f/4 L IS
- Canon 400mm f/5.6 L
- Leica Telyt 400mm f/5
- Nikon 600mm f/5.6 ED-IF AI-s
- Leica APO-Telyt-R 280mm f/2.8
Also see: depth of field, bokeh, crop factor, lens compression.