Samyang 50mm F1.4 AS UMC vs Viltrox AF 50mm F1.8 FE
Key differences
- —The AF 50mm F1.8 FE is 215g lighter (350g vs 565g).
- —The 50mm F1.4 AS UMC is faster: f/1.4 vs f/1.8 (≈0.7 stops more light).
- —At launch the AF 50mm F1.8 FE cost $100 less ($399 vs $499).
- —The 50mm F1.4 AS UMC is manual focus only.
- —For close-ups the 50mm F1.4 AS UMC reaches 0.13× vs 0.10×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 50mm
- 50mm
- Max aperture
- F1.4◆
- F1.8
- Weight
- 565g
- 350g◆
- Dimensions ⌀ × L
- 81.6 × 100.7mm
- 70.0 × 88.2mm
- Volume
- 527 cm³
- 339 cm³◆
- Density
- 1.07 g/cm³
- 1.03 g/cm³
- Filter thread
- ⌀77mm
- ⌀55mm
- Min focus
- 0.45m◆
- 0.55m
- Max magnification
- 0.13×◆
- 0.10×
- Elements / groups
- 9 / 6
- 11 / 10
- Aperture blades
- 8
- 9◆
- Focus drive
- Manual Helicoid
- STM (Lead Screw)
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- Yes
- Yes
- Released
- 2013
- 2020
- MSRP (USD)
- $499
- $399◆
- Sharpness
- 7.5
- 7.8◆
- Bokeh Rendering
- 7.8
- 7.8
- Autofocus Speed
- MF
- 6.9
- Flare Resistance
- 7.0
- 7.0
- Build / Sealing
- 7.3
- 7.6◆
- Value / Size
- 8.3
- 8.5◆
Performance overlay
- 50mm F1.4 AS UMC
- AF 50mm F1.8 FE
◆ marks the best value in a row. Scores are 0–10 editorial ratings.