Sigma 28mm F1.4 DG HSM | Art (L-Mount) vs Viltrox AF 28mm F4.5 Chip L (L-Mount)
Key differences
- —The AF 28mm F4.5 Chip L (L-Mount) is 900g lighter (60g vs 960g).
- —The 28mm F1.4 DG HSM | Art (L-Mount) is faster: f/1.4 vs f/4.5 (≈3.4 stops more light).
- —At launch the AF 28mm F4.5 Chip L (L-Mount) cost $1,300 less ($99 vs $1,399).
- —For close-ups the 28mm F1.4 DG HSM | Art (L-Mount) reaches 0.18× vs 0.10×.
Which to choose
- 28mm F1.4 DG HSM | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.4, about 3.4 stops more light
- +Weather sealing
- +The sharpest results in reviews
- +The nicest background blur in reviews
- +The fastest autofocus in reviews
- AF 28mm F4.5 Chip L (L-Mount)
Choose it for:
- +The lightest option: 60g, 900g less than the next
- +The lowest launch price: $99, $1,300 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
- 28mm
- 28mm
- Max aperture
- F1.4◆
- F4.5
- Weight
- 960g
- 60g◆
- Dimensions ⌀ × L
- 82.8 × 131.7mm
- 60.6 × 13.2mm
- Volume
- 709 cm³
- 38 cm³◆
- Density
- 1.35 g/cm³
- 1.58 g/cm³
- Filter thread
- ⌀77mm
- —
- Min focus
- 0.28m◆
- 0.32m
- Max magnification
- 0.18×◆
- 0.10×
- Elements / groups
- 17 / 12
- 6 / 6
- Aperture blades
- 9
- Not published
- Focus drive
- HSM (Hyper Sonic Motor)
- VCM
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- —
- —
- Released
- 2019
- 2026
- MSRP (USD)
- $1,399
- $99◆
- Sharpness
- 9.0◆
- 6.6
- Bokeh Rendering
- 8.5◆
- 5.5
- Autofocus Speed
- 7.6◆
- 6.8
- Flare Resistance
- 7.2◆
- 6.0
- Build / Sealing
- 8.5◆
- 6.6
- Value / Size
- 8.3
- 8.8◆
Performance overlay
- 28mm F1.4 DG HSM | Art (L-Mount)
- AF 28mm F4.5 Chip L (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

