Samyang 50mm F1.4 AS UMC vs ZEISS Loxia 2/50
Key differences
- —The ZEISS Loxia 2/50 is 245g lighter (320g vs 565g).
- —The 50mm F1.4 AS UMC is faster: f/1.4 vs f/2 (≈1.0 stops more light).
- —At launch the 50mm F1.4 AS UMC cost $450 less ($499 vs $949).
- —For close-ups the ZEISS Loxia 2/50 reaches 0.14× vs 0.13×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 50mm
- 50mm
- Max aperture
- F1.4◆
- F2
- Weight
- 565g
- 320g◆
- Dimensions ⌀ × L
- 81.6 × 100.7mm
- 62.1 × 59.2mm
- Volume
- 527 cm³
- 179 cm³◆
- Density
- 1.07 g/cm³
- 1.78 g/cm³
- Filter thread
- ⌀77mm
- ⌀52mm
- Min focus
- 0.45m
- 0.45m
- Max magnification
- 0.13×
- 0.14×◆
- Elements / groups
- 9 / 6
- 6 / 4
- Aperture blades
- 8
- 10◆
- Focus drive
- Manual Helicoid
- Manual Helicoid
- Stabilisation
- —
- —
- Weather sealed
- —
- —
- Aperture ring
- Yes
- Yes · de-click
- Released
- 2013
- 2014
- MSRP (USD)
- $499◆
- $949
- Sharpness
- 7.5
- 7.8◆
- Bokeh Rendering
- 7.8◆
- 7.7
- Autofocus Speed
- MF
- MF
- Flare Resistance
- 7.0
- 8.0◆
- Build / Sealing
- 7.3
- 9.0◆
- Value / Size
- 8.3◆
- 7.2
Performance overlay
- 50mm F1.4 AS UMC
- ZEISS Loxia 2/50
◆ marks the best value in a row. Scores are 0–10 editorial ratings.