Samyang 50mm F1.4 AS UMC vs ZEISS Otus ML 1.4/50
Key differences
- —The 50mm F1.4 AS UMC is 112g lighter (565g vs 677g).
- —At launch the 50mm F1.4 AS UMC cost $2,000 less ($499 vs $2,499).
- —For close-ups the ZEISS Otus ML 1.4/50 reaches 0.14× vs 0.13×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 50mm
- 50mm
- Max aperture
- F1.4
- F1.4
- Weight
- 565g◆
- 677g
- Dimensions ⌀ × L
- 81.6 × 100.7mm
- 77.4 × 100.0mm
- Volume
- 527 cm³
- 471 cm³◆
- Density
- 1.07 g/cm³
- 1.44 g/cm³
- Filter thread
- ⌀77mm
- ⌀67mm
- Min focus
- 0.45m◆
- 0.50m
- Max magnification
- 0.13×
- 0.14×◆
- Elements / groups
- 9 / 6
- 14 / 11
- Aperture blades
- 8
- 10◆
- Focus drive
- Manual Helicoid
- Manual Helicoid
- Stabilisation
- —
- —
- Weather sealed
- —
- Yes
- Aperture ring
- Yes
- Yes · de-click
- Released
- 2013
- 2025
- MSRP (USD)
- $499◆
- $2,499
- Sharpness
- 7.5
- 8.8◆
- Bokeh Rendering
- 7.8
- 8.6◆
- Autofocus Speed
- MF
- MF
- Flare Resistance
- 7.0
- 8.7◆
- Build / Sealing
- 7.3
- 9.6◆
- Value / Size
- 8.3◆
- 6.5
Performance overlay
- 50mm F1.4 AS UMC
- ZEISS Otus ML 1.4/50
◆ marks the best value in a row. Scores are 0–10 editorial ratings.

