Sigma 20mm F1.4 DG DN | Art (L-Mount) vs Sigma 20mm F2 DG | Contemporary (L-Mount)
Key differences
- —The 20mm F2 DG | Contemporary (L-Mount) is 265g lighter (370g vs 635g).
- —The 20mm F1.4 DG DN | Art (L-Mount) is faster: f/1.4 vs f/2 (≈1.0 stops more light).
- —At launch the 20mm F2 DG | Contemporary (L-Mount) cost $200 less ($699 vs $899).
- —For close-ups the 20mm F1.4 DG DN | Art (L-Mount) reaches 0.16× vs 0.15×.
Which to choose
- 20mm F1.4 DG DN | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.4, about 1.0 stop more light
- +Weather sealing
- +The nicest background blur in reviews
- +The fastest autofocus in reviews
- 20mm F2 DG | Contemporary (L-Mount)
Choose it for:
- +The lightest option: 370g, 265g less than the next
- +The lowest launch price: $699, $200 less
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
- F1.4◆
- F2
- Weight
- 635g
- 370g◆
- Dimensions ⌀ × L
- 87.8 × 111.2mm
- 70.0 × 72.4mm
- Volume
- 673 cm³
- 279 cm³◆
- Density
- 0.94 g/cm³
- 1.33 g/cm³
- Filter thread
- ⌀82mm
- ⌀62mm
- Min focus
- 0.23m
- 0.22m◆
- Max magnification
- 0.16×◆
- 0.15×
- Elements / groups
- 17 / 15
- 13 / 11
- Aperture blades
- 11◆
- 9
- Focus drive
- Stepping Motor
- Stepping Motor
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- Yes · de-click
- Yes
- Released
- 2022
- 2022
- MSRP (USD)
- $899
- $699◆
- Sharpness
- 8.5◆
- 8.3
- Bokeh Rendering
- 8.0◆
- 7.3
- Autofocus Speed
- 8.4◆
- 8.0
- Flare Resistance
- 8.0
- —
- Build / Sealing
- 8.9◆
- 8.7
- Value / Size
- 8.8◆
- 8.4
Performance overlay
- 20mm F1.4 DG DN | Art (L-Mount)
- 20mm F2 DG | Contemporary (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

