Laowa 20mm f/4 Zero-D Shift (L-Mount) vs Viltrox AF 20mm F2.8 Air L (L-Mount)
Key differences
- —The AF 20mm F2.8 Air L (L-Mount) is 588g lighter (159g vs 747g).
- —The AF 20mm F2.8 Air L (L-Mount) is faster: f/2.8 vs f/4 (≈1.0 stops more light).
- —At launch the AF 20mm F2.8 Air L (L-Mount) cost $923 less ($176 vs $1,099).
- —The 20mm f/4 Zero-D Shift (L-Mount) is manual focus only.
Which to choose
- 20mm f/4 Zero-D Shift (L-Mount)
Choose it for:
- +A physical aperture ring
- AF 20mm F2.8 Air L (L-Mount)
Choose it for:
- +The lightest option: 159g, 588g less than the next
- +The brightest aperture: f/2.8, about 1.0 stop more light
- +Autofocus
- +The lowest launch price: $176, $923 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
- F4
- F2.8◆
- Weight
- 747g
- 159g◆
- Dimensions ⌀ × L
- 95.0 × 91.0mm
- 64.0 × 52.3mm
- Volume
- 645 cm³
- 168 cm³◆
- Density
- 1.16 g/cm³
- 0.95 g/cm³
- Filter thread
- ⌀82mm
- ⌀52mm
- Min focus
- 0.25m
- 0.19m◆
- Max magnification
- 0.17×
- 0.17×
- Elements / groups
- 16 / 11
- 10 / 8
- Aperture blades
- 14◆
- 7
- Focus drive
- Manual Helicoid
- STM (Lead Screw)
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- Yes
- —
- Released
- 2022
- 2026
- MSRP (USD)
- $1,099
- $176◆
- Sharpness
- 8.6◆
- 7.4
- Bokeh Rendering
- 6.3◆
- 6.2
- Autofocus Speed
- MF
- 7.3
- Flare Resistance
- 7.0◆
- 6.8
- Build / Sealing
- 8.4◆
- 7.2
- Value / Size
- 8.0
- 9.2◆
Performance overlay
- 20mm f/4 Zero-D Shift (L-Mount)
- AF 20mm F2.8 Air L (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.