Panasonic LUMIX S 20mm F2.5 vs Sigma 20mm F1.4 DG HSM | Art (L-Mount)
Key differences
- —The LUMIX S 20mm F2.5 is 893g lighter (142g vs 1035g).
- —The 20mm F1.4 DG HSM | Art (L-Mount) is faster: f/1.4 vs f/2.5 (≈1.7 stops more light).
- —At launch the LUMIX S 20mm F2.5 cost $401 less ($498 vs $899).
- —For close-ups the LUMIX S 20mm F2.5 reaches 0.15× vs 0.14×.
Which to choose
- LUMIX S 20mm F2.5
Choose it for:
- +The lightest option: 142g, 893g less than the next
- +Weather sealing
- +The lowest launch price: $498, $401 less
- +The fastest autofocus in reviews
- 20mm F1.4 DG HSM | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.4, about 1.7 stops more light
- +The sharpest results in reviews
- +The nicest background blur in reviews
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
- F1.4◆
- Weight
- 142g◆
- 1,035g
- Dimensions ⌀ × L
- 69.4 × 40.9mm
- 90.7 × 153.8mm
- Volume
- 155 cm³◆
- 993 cm³
- Density
- 0.92 g/cm³
- 1.04 g/cm³
- Filter thread
- ⌀62mm
- —
- Min focus
- 0.18m◆
- 0.28m
- Max magnification
- 0.15×◆
- 0.14×
- Elements / groups
- 11 / 9
- 15 / 11
- Aperture blades
- 7
- 9◆
- Focus drive
- Stepping Motor
- HSM (Hyper Sonic Motor)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- —
- —
- Released
- 2026
- 2019
- MSRP (USD)
- $498◆
- $899
- Sharpness
- 7.6
- 8.4◆
- Bokeh Rendering
- 7.0
- 7.9◆
- Autofocus Speed
- 8.3◆
- 7.4
- Flare Resistance
- 6.4
- 7.8◆
- Build / Sealing
- 8.2
- 8.2
- Value / Size
- 7.8◆
- 7.6
Performance overlay
- LUMIX S 20mm F2.5
- 20mm F1.4 DG HSM | Art (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.