Samyang AF 18mm F2.8 FE vs Sigma 17mm F4 DG | Contemporary
Key differences
- —The AF 18mm F2.8 FE is 75g lighter (145g vs 220g).
- —The AF 18mm F2.8 FE is faster: f/2.8 vs f/4 (≈1.0 stops more light).
- —At launch the AF 18mm F2.8 FE cost $200 less ($399 vs $599).
- —For close-ups the 17mm F4 DG | Contemporary reaches 0.28× vs 0.09×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 18mm
- 17mm
- Max aperture
- F2.8◆
- F4
- Weight
- 145g◆
- 220g
- Dimensions ⌀ × L
- 63.5 × 60.5mm
- 64.0 × 50.8mm
- Volume
- 192 cm³
- 163 cm³◆
- Density
- 0.76 g/cm³
- 1.35 g/cm³
- Filter thread
- ⌀58mm
- ⌀55mm
- Min focus
- 0.25m
- 0.12m◆
- Max magnification
- 0.09×
- 0.28×◆
- Elements / groups
- 9 / 8
- 9 / 8
- Aperture blades
- 7
- 7
- Focus drive
- Linear STM
- Stepping Motor
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- —
- Yes
- Released
- 2019
- 2023
- MSRP (USD)
- $399◆
- $599
- Sharpness
- 7.4
- 8.5◆
- Bokeh Rendering
- 6.5◆
- 6.3
- Autofocus Speed
- 7.0
- 8.1◆
- Flare Resistance
- 8.0◆
- 7.8
- Build / Sealing
- 6.6
- 8.7◆
- Value / Size
- 8.6◆
- 8.4
Performance overlay
- AF 18mm F2.8 FE
- 17mm F4 DG | Contemporary
◆ marks the best value in a row. Scores are 0–10 editorial ratings.