Laowa 20mm f/4 Zero-D Shift vs Sirui Swift 20mm F2.4
The Sirui is 540g lighter, is brighter (f/2.4 vs f/4) and has autofocus.
Key differences
- The Sirui is 540g lighter (207g vs 747g).
- The Sirui is faster: f/2.4 vs f/4 (≈1.5 stops more light).
- At launch the Sirui cost $950 less ($149 vs $1,099).
- The Laowa is manual focus only.
- For close-ups the Laowa reaches 0.17× vs 0.14×.
Which to choose
- 20mm f/4 Zero-D Shift
No clear advantage on paper. Compare handling and the full specs below.
- Swift 20mm F2.4
Choose it for:
- +The lightest option: 207g, 540g less than the next
- +The brightest aperture: f/2.4, about 1.5 stops more light
- +Autofocus
- +Weather sealing
- +The lowest launch price: $149, $950 less
Computed from published specs, confirmed launch prices and, where every lens has at least two reviews, review scores.
Sirui
Swift 20mm F2.4
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 20mm
- 20mm
- Max aperture
- F4
- F2.4◆
- Weight
- 747g
- 207g◆
- Dimensions ⌀ × L
- 95.0 × 91.0mm
- 69.5 × 62.3mm
- Volume
- 645 cm³
- 236 cm³◆
- Density
- 1.16 g/cm³
- 0.88 g/cm³
- Filter thread
- ⌀82mm
- ⌀58mm
- Min focus
- 0.25m
- 0.20m◆
- Max magnification
- 0.17×◆
- 0.14×
- Elements / groups
- 16 / 11
- 11 / 9
- Aperture blades
- 14◆
- 9
- Focus drive
- Manual Helicoid
- STM
- Stabilisation
- —
- —
- Weather sealed
- —
- Yes
- Aperture ring
- Yes
- Yes
- Released
- 2022
- 2026
- MSRP (USD)
- $1,099
- $149◆
- Sharpness
- 8.2
- —
- Bokeh Rendering
- —
- —
- Autofocus Speed
- MF
- —
- Flare Resistance
- 7.0
- —
- Build / Sealing
- 8.5
- —
- Value / Size
- 8.0
- —
Performance overlay
- 20mm f/4 Zero-D Shift
- Swift 20mm F2.4
◆ marks the best value in a row. Scores are 0–10 editorial ratings.