Samyang MF 14mm F2.8 Z vs Viltrox AF 14mm F4.0 Air Z
Key differences
- —The AF 14mm F4.0 Air Z is 625g lighter (185g vs 810g).
- —The MF 14mm F2.8 Z is faster: f/2.8 vs f/4 (≈1.0 stops more light).
- —At launch the AF 14mm F4.0 Air Z cost $141 less ($199 vs $340).
- —The MF 14mm F2.8 Z is manual focus only.
- —For close-ups the AF 14mm F4.0 Air Z reaches 0.23× vs 0.08×.
- Mount
- Nikon Z (FX)
- Nikon Z (FX)
- Focal length
- 14mm
- 14mm
- Max aperture
- F2.8◆
- F4
- Weight
- 810g
- 185g◆
- Dimensions ⌀ × L
- 87.0 × 124.1mm
- 68.0 × 58.4mm
- Volume
- 738 cm³
- 212 cm³◆
- Density
- 1.10 g/cm³
- 0.87 g/cm³
- Filter thread
- —
- ⌀58mm
- Min focus
- 0.28m
- 0.13m◆
- Max magnification
- 0.08×
- 0.23×◆
- Elements / groups
- 14 / 10
- 12 / 9
- Aperture blades
- 6
- 7◆
- Focus drive
- Manual Helicoid
- STM (Lead Screw)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- Yes
- —
- Released
- 2019
- 2025
- MSRP (USD)
- $340
- $199◆
- Sharpness
- 7.8
- 8.0◆
- Bokeh Rendering
- 6.3
- 6.4◆
- Autofocus Speed
- MF
- 7.6
- Flare Resistance
- 6.6
- 7.6◆
- Build / Sealing
- 7.6◆
- 6.8
- Value / Size
- 8.8
- 9.4◆
Performance overlay
- MF 14mm F2.8 Z
- AF 14mm F4.0 Air Z
◆ marks the best value in a row. Scores are 0–10 editorial ratings.