Panasonic LUMIX S 40mm F2 vs Viltrox AF 40mm F2.5 Air L (L-Mount)
Key differences
- —The LUMIX S 40mm F2 is faster: f/2 vs f/2.5 (≈0.6 stops more light).
- —At launch the AF 40mm F2.5 Air L (L-Mount) cost $232 less ($168 vs $400).
- —For close-ups the LUMIX S 40mm F2 reaches 0.17× vs 0.14×.
Which to choose
- LUMIX S 40mm F2
Choose it for:
- +The brightest aperture: f/2, about 0.6 stop more light
- +Weather sealing
- AF 40mm F2.5 Air L (L-Mount)
Choose it for:
- +The lowest launch price: $168, $232 less
Computed from published specs, confirmed launch prices and, where every lens has at least two reviews, review scores.
- Mount
- L-Mount (FF)
- L-Mount (FF)
- Focal length
- 40mm
- 40mm
- Max aperture
- F2◆
- F2.5
- Weight
- 144g◆
- 169g
- Dimensions ⌀ × L
- 69.4 × 40.9mm
- 64.0 × 52.5mm
- Volume
- 155 cm³◆
- 169 cm³
- Density
- 0.93 g/cm³
- 1.00 g/cm³
- Filter thread
- ⌀62mm
- ⌀52mm
- Min focus
- 0.30m◆
- 0.34m
- Max magnification
- 0.17×◆
- 0.14×
- Elements / groups
- 7 / 6
- 10 / 6
- Aperture blades
- 7
- 7
- Focus drive
- Stepping Motor
- STM (Lead Screw)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- —
- —
- Released
- 2026
- 2026
- MSRP (USD)
- $400
- $168◆
- Sharpness
- 8.3◆
- 7.6
- Bokeh Rendering
- 7.0
- 7.0
- Autofocus Speed
- 8.3◆
- 7.5
- Flare Resistance
- 8.4◆
- 7.4
- Build / Sealing
- 8.2◆
- 7.0
- Value / Size
- 9.0
- 9.2◆
Performance overlay
- LUMIX S 40mm F2
- AF 40mm F2.5 Air L (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.