Sigma 40mm F1.4 DG HSM | Art vs Sirui Swift 40mm F2.2
The Sigma is brighter (f/1.4 vs f/2.2). The Sirui is 1050g lighter, has an aperture ring and cost $1,250 less at launch.
Key differences
- The Sirui is 1050g lighter (210g vs 1260g).
- The Sigma is faster: f/1.4 vs f/2.2 (≈1.3 stops more light).
- At launch the Sirui cost $1,250 less ($149 vs $1,399).
- For close-ups the Sigma reaches 0.15× vs 0.14×.
Which to choose
- 40mm F1.4 DG HSM | Art
Choose it for:
- +The brightest aperture: f/1.4, about 1.3 stops more light
- Swift 40mm F2.2
Choose it for:
- +The lightest option: 210g, 1050g less than the next
- +A physical aperture ring
- +The lowest launch price: $149, $1,250 less
Computed from published specs, confirmed launch prices and, where every lens has at least two reviews, review scores.
Sirui
Swift 40mm F2.2
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 40mm
- 40mm
- Max aperture
- F1.4◆
- F2.2
- Weight
- 1,260g
- 210g◆
- Dimensions ⌀ × L
- 87.8 × 157.0mm
- 69.5 × 62.3mm
- Volume
- 951 cm³
- 236 cm³◆
- Density
- 1.33 g/cm³
- 0.89 g/cm³
- Filter thread
- ⌀82mm
- ⌀58mm
- Min focus
- 0.40m
- 0.40m
- Max magnification
- 0.15×◆
- 0.14×
- Elements / groups
- 16 / 12
- 11 / 8
- Aperture blades
- 9
- 9
- Focus drive
- HSM (Hyper Sonic Motor)
- STM
- Stabilisation
- —
- —
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- Yes
- Released
- 2019
- 2026
- MSRP (USD)
- $1,399
- $149◆
- Sharpness
- 9.5
- —
- Bokeh Rendering
- 8.5
- —
- Autofocus Speed
- 7.8
- —
- Flare Resistance
- 7.4
- —
- Build / Sealing
- 8.8
- —
- Value / Size
- 7.6
- —
Performance overlay
- 40mm F1.4 DG HSM | Art
- Swift 40mm F2.2
◆ marks the best value in a row. Scores are 0–10 editorial ratings.