Laowa 20mm f/4 Zero-D Shift (L-Mount) vs Leica Super-APO-Summicron-SL 21 f/2 ASPH.
Key differences
- —The 20mm f/4 Zero-D Shift (L-Mount) is 42g lighter (747g vs 789g).
- —The Super-APO-Summicron-SL 21 f/2 ASPH. is faster: f/2 vs f/4 (≈2.0 stops more light).
- —At launch the 20mm f/4 Zero-D Shift (L-Mount) cost $4,396 less ($1,099 vs $5,495).
- —The 20mm f/4 Zero-D Shift (L-Mount) is manual focus only.
- —For close-ups the Super-APO-Summicron-SL 21 f/2 ASPH. reaches 0.19× vs 0.17×.
Which to choose
- 20mm f/4 Zero-D Shift (L-Mount)
Choose it for:
- +The widest view: starts at 20mm
- +A physical aperture ring
- +The lowest launch price: $1,099, $4,396 less
- Super-APO-Summicron-SL 21 f/2 ASPH.
Choose it for:
- +The brightest aperture: f/2, about 2.0 stops more light
- +The longest reach: up to 21mm
- +Autofocus
- +Weather sealing
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
- 21mm
- Max aperture
- F4
- F2◆
- Weight
- 747g◆
- 789g
- Dimensions ⌀ × L
- 95.0 × 91.0mm
- 73.0 × 102.0mm
- Volume
- 645 cm³
- 427 cm³◆
- Density
- 1.16 g/cm³
- 1.85 g/cm³
- Filter thread
- ⌀82mm
- ⌀67mm
- Min focus
- 0.25m
- 0.21m◆
- Max magnification
- 0.17×
- 0.19×◆
- Elements / groups
- 16 / 11
- 14 / 11
- Aperture blades
- 14
- Not published
- Focus drive
- Manual Helicoid
- Dual Synchro Drive
- Stabilisation
- —
- —
- Weather sealed
- —
- Yes
- Aperture ring
- Yes
- —
- Released
- 2022
- 2023
- MSRP (USD)
- $1,099◆
- $5,495
- Sharpness
- 8.6
- 9.2◆
- Bokeh Rendering
- 6.3
- 8.4◆
- Autofocus Speed
- MF
- 8.5
- Flare Resistance
- 7.0
- 8.3◆
- Build / Sealing
- 8.4
- 9.3◆
- Value / Size
- 8.0◆
- 5.5
Performance overlay
- 20mm f/4 Zero-D Shift (L-Mount)
- Super-APO-Summicron-SL 21 f/2 ASPH.
◆ marks the best value in a row. Scores are 0–10 editorial ratings.