Sigma 20-60mm F2.8-4 DG | Contemporary (L-Mount) vs Sigma 28-45mm F1.8 DG DN | Art (L-Mount)
Key differences
- —The 20-60mm F2.8-4 DG | Contemporary (L-Mount) is 575g lighter (385g vs 960g).
- —The 28-45mm F1.8 DG DN | Art (L-Mount) is faster: f/1.8 vs f/2.8 (≈1.3 stops more light).
- —At launch the 20-60mm F2.8-4 DG | Contemporary (L-Mount) cost $500 less ($849 vs $1,349).
- —For close-ups the 20-60mm F2.8-4 DG | Contemporary (L-Mount) reaches 0.43× vs 0.25×.
Which to choose
- 20-60mm F2.8-4 DG | Contemporary (L-Mount)
Choose it for:
- +The lightest option: 385g, 575g less than the next
- +The widest view: starts at 20mm
- +The longest reach: up to 60mm
- +The best close-ups: 0.43× magnification
- +The lowest launch price: $849, $500 less
- 28-45mm F1.8 DG DN | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.8, about 1.3 stops more light
- +A physical aperture ring
- +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
- 20–60mm
- 28–45mm
- Max aperture
- F2.8–4
- F1.8◆
- Weight
- 385g◆
- 960g
- Dimensions ⌀ × L
- 72.2 × 86.0mm
- 87.8 × 151.4mm
- Volume
- 352 cm³◆
- 917 cm³
- Density
- 1.09 g/cm³
- 1.05 g/cm³
- Filter thread
- ⌀67mm
- ⌀82mm
- Min focus
- 0.16m◆
- 0.30m
- Max magnification
- 0.43×◆
- 0.25×
- Elements / groups
- 15 / 13
- 18 / 15
- Aperture blades
- 9
- 11◆
- Focus drive
- HLA Linear Motor
- HLA (High-response Linear Actuator)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- Yes · de-click
- Released
- 2026
- 2024
- MSRP (USD)
- $849◆
- $1,349
- Sharpness
- 8.4
- 9.3◆
- Bokeh Rendering
- 7.2
- 8.8◆
- Autofocus Speed
- 8.6
- 8.8◆
- Flare Resistance
- —
- 8.6
- Build / Sealing
- 7.9
- 9.0◆
- Value / Size
- 8.8◆
- 8.5
Performance overlay
- 20-60mm F2.8-4 DG | Contemporary (L-Mount)
- 28-45mm F1.8 DG DN | Art (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.