Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO (L-Mount) vs Sigma 28-70mm F2.8 DG DN | Contemporary (L-Mount)
Key differences
- —The 28-70mm F2.8 DG DN | Contemporary (L-Mount) is 129g lighter (470g vs 599g).
- —At launch the Aksen 45mm f/2.8 1-5X Ultra Macro APO (L-Mount) cost $150 less ($749 vs $899).
- —The Aksen 45mm f/2.8 1-5X Ultra Macro APO (L-Mount) is manual focus only.
- —For close-ups the Aksen 45mm f/2.8 1-5X Ultra Macro APO (L-Mount) reaches 5.00× vs 0.30×.
Which to choose
- Aksen 45mm f/2.8 1-5X Ultra Macro APO (L-Mount)
Choose it for:
- +The best close-ups: 5.00× magnification
- +A physical aperture ring
- +The lowest launch price: $749, $150 less
- +The sharpest results in reviews
- 28-70mm F2.8 DG DN | Contemporary (L-Mount)
Choose it for:
- +The lightest option: 470g, 129g less than the next
- +The widest view: starts at 28mm
- +The longest reach: up to 70mm
- +Autofocus
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
- 45mm
- 28–70mm
- Max aperture
- F2.8
- F2.8
- Weight
- 599g
- 470g◆
- Dimensions ⌀ × L
- 70.2 × 121.0mm
- 72.2 × 101.5mm
- Volume
- 468 cm³
- 416 cm³◆
- Density
- 1.28 g/cm³
- 1.13 g/cm³
- Filter thread
- —
- ⌀67mm
- Min focus
- 0.18m◆
- 0.19m
- Max magnification
- 5.00×◆
- 0.30×
- Elements / groups
- 13 / 9
- 16 / 12
- Aperture blades
- 11◆
- 9
- Focus drive
- Manual Helicoid
- Stepping Motor
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- Yes
- —
- Released
- 2026
- 2021
- MSRP (USD)
- $749◆
- $899
- Sharpness
- 9.0◆
- 8.4
- Bokeh Rendering
- —
- 7.7
- Autofocus Speed
- MF
- 8.2
- Flare Resistance
- —
- 7.6
- Build / Sealing
- 8.8◆
- 7.6
- Value / Size
- 8.5
- 9.0◆
Performance overlay
- Aksen 45mm f/2.8 1-5X Ultra Macro APO (L-Mount)
- 28-70mm F2.8 DG DN | Contemporary (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.