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Sony E 30mm F3.5 Macro — Bokeh & Optical Ray-Tracing Simulator
Interactive 3D portrait ray-traced through the published JP2012-159613A optical prescription (9 elements in 6 groups, 4 aspherical) with a 8.6 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 | JP2012-159613A · 9 elements in 6 groups (4 aspherical) | Traced surface by surface in WebGL2 |
| Entrance Pupil Diameter | 8.6 mm (at f/3.5) | Controls distant background blur disc size |
| Corner Bokeh Roundness (90% Field) | 92% at f/3.5 · -0.3 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) | 30.0 mm (-0.0%) | Actual framing focal length at portrait distance |
| Depth of Field (Sharp Zone) | 80 cm (1.53 m – 2.33 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 Sony E 30mm F3.5 Macro produce?
Wide open at f/3.5, the Sony E 30mm F3.5 Macro has a 8.6 mm entrance pupil (30 mm ÷ 3.5) and 92% bokeh roundness in the 90% corner (-0.3 EV corner falloff). In an upper-body portrait at 1.85 m, the sharp depth-of-field zone spans 80 cm (1.53 m to 2.33 m) with a 43° horizontal background angle of view.
Does the Sony E 30mm F3.5 Macro show focus breathing at portrait distance?
Based on patent JP2012-159613A, tracing the focusing group at 1.85 m gives an effective framing focal length of 30.0 mm (-0.0% 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 Sony E 30mm F3.5 Macro?
The patent prescription (JP2012-159613A) specifies 9 lens elements in 6 groups with 4 aspherical surfaces. The interactive Optical X-Ray above traces rays through every surface in real time.
Related comparisons
- Sony E 35mm F1.8 OSS
- Sony Sonnar E 24mm F1.8 ZA
- 33mm APS-C vs 50mm full frame focal length comparison
- 35mm APS-C vs 50mm full frame focal length comparison
- 23mm APS-C vs 35mm full frame focal length comparison
- 28mm vs 35mm focal length comparison
Compare with similar portrait lenses
- Fujifilm XF 30mm F2.8 R LM WR Macro
- Fujifilm GF 30mm F3.5 R WR
- Nikon 28mm f/3.5
- Fujifilm XF 27mm F2.8 R WR
- Nikon NIKKOR Z 28mm f/2.8
- Sony FE 24mm F2.8 G
Also see: depth of field, bokeh, crop factor, lens compression.