Sigma 28-70mm F2.8 DG DN | Contemporary (L-Mount) vs Sigma 45mm F2.8 DG | Contemporary (L-Mount)
Key differences
- —The 45mm F2.8 DG | Contemporary (L-Mount) is 250g lighter (220g vs 470g).
- —For close-ups the 28-70mm F2.8 DG DN | Contemporary (L-Mount) reaches 0.30× vs 0.25×.
Which to choose
- 28-70mm F2.8 DG DN | Contemporary (L-Mount)
Choose it for:
- +The widest view: starts at 28mm
- +The longest reach: up to 70mm
- +The best close-ups: 0.30× magnification
- +The sharpest results in reviews
- +The fastest autofocus in reviews
- 45mm F2.8 DG | Contemporary (L-Mount)
Choose it for:
- +The lightest option: 220g, 250g less than the next
- +A physical aperture ring
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
- 28–70mm
- 45mm
- Max aperture
- F2.8
- F2.8
- Weight
- 470g
- 220g◆
- Dimensions ⌀ × L
- 72.2 × 101.5mm
- 64.0 × 46.2mm
- Volume
- 416 cm³
- 149 cm³◆
- Density
- 1.13 g/cm³
- 1.48 g/cm³
- Filter thread
- ⌀67mm
- ⌀55mm
- Min focus
- 0.19m◆
- 0.24m
- Max magnification
- 0.30×◆
- 0.25×
- Elements / groups
- 16 / 12
- 8 / 7
- Aperture blades
- 9◆
- 7
- Focus drive
- Stepping Motor
- Stepping Motor
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- —
- Yes
- Released
- 2021
- 2019
- MSRP (USD)
- $899
- Unconfirmed
- Sharpness
- 8.4◆
- 7.9
- Bokeh Rendering
- 7.7
- 8.0◆
- Autofocus Speed
- 8.2◆
- 7.8
- Flare Resistance
- 7.6
- —
- Build / Sealing
- 7.6
- 9.2◆
- Value / Size
- 9.0◆
- 7.9
Performance overlay
- 28-70mm F2.8 DG DN | Contemporary (L-Mount)
- 45mm F2.8 DG | Contemporary (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

