Sigma 17mm F4 DG | Contemporary (L-Mount) vs Viltrox AF 16mm F1.8 L (L-Mount)
Key differences
- —The 17mm F4 DG | Contemporary (L-Mount) is 325g lighter (225g vs 550g).
- —The AF 16mm F1.8 L (L-Mount) is faster: f/1.8 vs f/4 (≈2.3 stops more light).
- —For close-ups the 17mm F4 DG | Contemporary (L-Mount) reaches 0.28× vs 0.10×.
Which to choose
- 17mm F4 DG | Contemporary (L-Mount)
Choose it for:
- +The lightest option: 225g, 325g less than the next
- +The longest reach: up to 17mm
- +The best close-ups: 0.28× magnification
- +The sharpest results in reviews
- AF 16mm F1.8 L (L-Mount)
Choose it for:
- +The brightest aperture: f/1.8, about 2.3 stops more light
- +The widest view: starts at 16mm
- +Weather sealing
- +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
- 17mm
- 16mm
- Max aperture
- F4
- F1.8◆
- Weight
- 225g◆
- 550g
- Dimensions ⌀ × L
- 64.0 × 48.8mm
- 85.2 × 103.0mm
- Volume
- 157 cm³◆
- 587 cm³
- Density
- 1.43 g/cm³
- 0.94 g/cm³
- Filter thread
- ⌀55mm
- ⌀77mm
- Min focus
- 0.12m◆
- 0.27m
- Max magnification
- 0.28×◆
- 0.10×
- Elements / groups
- 9 / 8
- 15 / 12
- Aperture blades
- 7
- 9◆
- Focus drive
- Stepping Motor
- STM (Lead Screw)
- Stabilisation
- —
- —
- Weather sealed
- —
- Yes
- Aperture ring
- Yes
- Yes · de-click
- Released
- 2023
- 2026
- MSRP (USD)
- Unconfirmed
- $580
- Sharpness
- 8.5◆
- 8.2
- Bokeh Rendering
- 6.3
- 7.5◆
- Autofocus Speed
- 7.8◆
- 7.6
- Flare Resistance
- —
- 7.2
- Build / Sealing
- 8.7
- 9.0◆
- Value / Size
- 8.3
- 9.3◆
Performance overlay
- 17mm F4 DG | Contemporary (L-Mount)
- AF 16mm F1.8 L (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.