Samyang 20mm F1.8 ED AS UMC vs Viltrox MF 20mm F1.8 ASPH FE
Key differences
- —The 20mm F1.8 ED AS UMC is 250g lighter (525g vs 775g).
- —At launch the MF 20mm F1.8 ASPH FE cost $200 less ($399 vs $599).
- —For close-ups the 20mm F1.8 ED AS UMC reaches 0.15× vs 0.10×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 20mm
- 20mm
- Max aperture
- F1.8
- F1.8
- Weight
- 525g◆
- 775g
- Dimensions ⌀ × L
- 83.0 × 114.4mm
- 76.8 × 102.0mm
- Volume
- 619 cm³
- 473 cm³◆
- Density
- 0.85 g/cm³
- 1.64 g/cm³
- Filter thread
- ⌀77mm
- ⌀82mm
- Min focus
- 0.20m◆
- 0.25m
- Max magnification
- 0.15×◆
- 0.10×
- Elements / groups
- 13 / 12
- 12 / 9
- Aperture blades
- 7
- 14◆
- Focus drive
- Manual Helicoid
- Manual Helicoid
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- Yes
- Yes
- Released
- 2016
- 2020
- MSRP (USD)
- $599
- $399◆
- Sharpness
- 7.6◆
- 7.4
- Bokeh Rendering
- 7.4◆
- 7.2
- Autofocus Speed
- MF
- MF
- Flare Resistance
- 7.0◆
- 6.8
- Build / Sealing
- 7.2
- 8.2◆
- Value / Size
- 8.2
- 8.2
Performance overlay
- 20mm F1.8 ED AS UMC
- MF 20mm F1.8 ASPH FE
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

