Panasonic LUMIX S 40mm F2 vs Sigma 40mm F1.4 DG HSM | Art (L-Mount)
Key differences
- —The LUMIX S 40mm F2 is 1151g lighter (144g vs 1295g).
- —The 40mm F1.4 DG HSM | Art (L-Mount) is faster: f/1.4 vs f/2 (≈1.0 stops more light).
- —At launch the LUMIX S 40mm F2 cost $999 less ($400 vs $1,399).
- —For close-ups the LUMIX S 40mm F2 reaches 0.17× vs 0.15×.
Which to choose
- LUMIX S 40mm F2
Choose it for:
- +The lightest option: 144g, 1151g less than the next
- +The lowest launch price: $400, $999 less
- +The fastest autofocus in reviews
- 40mm F1.4 DG HSM | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.4, about 1.0 stop 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
- 40mm
- 40mm
- Max aperture
- F2
- F1.4◆
- Weight
- 144g◆
- 1,295g
- Dimensions ⌀ × L
- 69.4 × 40.9mm
- 87.8 × 155.0mm
- Volume
- 155 cm³◆
- 938 cm³
- Density
- 0.93 g/cm³
- 1.38 g/cm³
- Filter thread
- ⌀62mm
- ⌀82mm
- Min focus
- 0.30m◆
- 0.40m
- Max magnification
- 0.17×◆
- 0.15×
- Elements / groups
- 7 / 6
- 16 / 12
- Aperture blades
- 7
- 9◆
- Focus drive
- Stepping Motor
- HSM (Hyper Sonic Motor)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- —
- Released
- 2026
- 2019
- MSRP (USD)
- $400◆
- $1,399
- Sharpness
- 8.3
- 9.4◆
- Bokeh Rendering
- 7.0
- 8.6◆
- Autofocus Speed
- 8.3◆
- 7.4
- Flare Resistance
- 8.4◆
- 7.6
- Build / Sealing
- 8.2
- 8.7◆
- Value / Size
- 9.0◆
- 7.5
Performance overlay
- LUMIX S 40mm F2
- 40mm F1.4 DG HSM | Art (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.