Panasonic LUMIX S 20mm F2.5 vs Viltrox AF 20mm F2.8 Air L (L-Mount)
Key differences
- —The LUMIX S 20mm F2.5 is faster: f/2.5 vs f/2.8 (≈0.3 stops more light).
- —At launch the AF 20mm F2.8 Air L (L-Mount) cost $322 less ($176 vs $498).
- —For close-ups the AF 20mm F2.8 Air L (L-Mount) reaches 0.17× vs 0.15×.
Which to choose
- LUMIX S 20mm F2.5
Choose it for:
- +The brightest aperture: f/2.5, about 0.3 stop more light
- +Weather sealing
- AF 20mm F2.8 Air L (L-Mount)
Choose it for:
- +The lowest launch price: $176, $322 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
- 20mm
- 20mm
- Max aperture
- F2.5◆
- F2.8
- Weight
- 142g◆
- 159g
- Dimensions ⌀ × L
- 69.4 × 40.9mm
- 64.0 × 52.3mm
- Volume
- 155 cm³◆
- 168 cm³
- Density
- 0.92 g/cm³
- 0.95 g/cm³
- Filter thread
- ⌀62mm
- ⌀52mm
- Min focus
- 0.18m◆
- 0.19m
- Max magnification
- 0.15×
- 0.17×◆
- Elements / groups
- 11 / 9
- 10 / 8
- Aperture blades
- 7
- 7
- Focus drive
- Stepping Motor
- STM (Lead Screw)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- —
- —
- Released
- 2026
- 2026
- MSRP (USD)
- $498
- $176◆
- Sharpness
- 7.6◆
- 7.4
- Bokeh Rendering
- 7.0◆
- 6.2
- Autofocus Speed
- 8.3◆
- 7.3
- Flare Resistance
- 6.4
- 6.8◆
- Build / Sealing
- 8.2◆
- 7.2
- Value / Size
- 7.8
- 9.2◆
Performance overlay
- LUMIX S 20mm F2.5
- AF 20mm F2.8 Air L (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.