Sony FE 40mm F2.5 G vs Voigtlander Septon 40mm F2 Aspherical
Key differences
- —The Septon 40mm F2 Aspherical is faster: f/2 vs f/2.5 (≈0.6 stops more light).
- —At launch the FE 40mm F2.5 G cost $99 less ($600 vs $699).
- —The Septon 40mm F2 Aspherical is manual focus only.
- —For close-ups the FE 40mm F2.5 G reaches 0.23× vs 0.19×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 40mm
- 40mm
- Max aperture
- F2.5
- F2◆
- Weight
- 173g
- 165g◆
- Dimensions ⌀ × L
- 68.0 × 45.0mm
- 61.7 × 30.0mm
- Volume
- 163 cm³
- 90 cm³◆
- Density
- 1.06 g/cm³
- 1.84 g/cm³
- Filter thread
- ⌀49mm
- ⌀52mm
- Min focus
- 0.25m◆
- 0.30m
- Max magnification
- 0.23×◆
- 0.19×
- Elements / groups
- 9 / 9
- 7 / 6
- Aperture blades
- 7
- 10◆
- Focus drive
- Linear Motor (x2)
- Manual Helicoid
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- Yes · de-click
- Yes
- Released
- 2021
- 2026
- MSRP (USD)
- $600◆
- $699
- Sharpness
- 8.4◆
- 8.0
- Bokeh Rendering
- 7.5◆
- 7.2
- Autofocus Speed
- 8.5
- MF
- Flare Resistance
- 8.3◆
- 8.0
- Build / Sealing
- 8.7
- 8.8◆
- Value / Size
- 7.9
- 8.3◆
Performance overlay
- FE 40mm F2.5 G
- Septon 40mm F2 Aspherical
◆ marks the best value in a row. Scores are 0–10 editorial ratings.