7Artisans AF 40mm F2.5 vs Sirui Swift 40mm F2.2
The 7Artisans is 120g lighter. The Sirui is brighter (f/2.2 vs f/2.5) and is weather sealed.
Key differences
- The 7Artisans is 120g lighter (90g vs 210g).
- The Sirui is faster: f/2.2 vs f/2.5 (≈0.4 stops more light).
- At launch the Sirui cost $10 less ($149 vs $159).
- For close-ups the Sirui reaches 0.14× vs 0.13×.
Which to choose
- AF 40mm F2.5
Choose it for:
- +The lightest option: 90g, 120g less than the next
- Swift 40mm F2.2
Choose it for:
- +The brightest aperture: f/2.2, about 0.4 stop more light
- +Weather sealing
Computed from published specs, confirmed launch prices and, where every lens has at least two reviews, review scores.
7Artisans
AF 40mm F2.5
Sirui
Swift 40mm F2.2
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 40mm
- 40mm
- Max aperture
- F2.5
- F2.2◆
- Weight
- 90g◆
- 210g
- Dimensions ⌀ × L
- 63.0 × 40.0mm
- 69.5 × 62.3mm
- Volume
- 125 cm³◆
- 236 cm³
- Density
- 0.72 g/cm³
- 0.89 g/cm³
- Filter thread
- ⌀46mm
- ⌀58mm
- Min focus
- 0.40m
- 0.40m
- Max magnification
- ≈0.13×
- 0.14×◆
- Elements / groups
- 7 / 6
- 11 / 8
- Aperture blades
- 9
- 9
- Focus drive
- STM
- STM
- Stabilisation
- —
- —
- Weather sealed
- —
- Yes
- Aperture ring
- Yes
- Yes
- Released
- 2026
- 2026
- MSRP (USD)
- $159
- $149◆
- Sharpness
- 7.5
- —
- Bokeh Rendering
- 7.8
- —
- Autofocus Speed
- 6.5
- —
- Flare Resistance
- 5.5
- —
- Build / Sealing
- 6.5
- —
- Value / Size
- 8.6
- —
Performance overlay
- AF 40mm F2.5
- Swift 40mm F2.2
◆ marks the best value in a row. Scores are 0–10 editorial ratings.