Samyang 50mm F1.4 AS UMC § 03 Head to head
Samyang 50mm F1.4 AS UMC vs Sigma A 50 mm f/1.4 DG DN
Samyang 50mm f/1.4 is 85 g lighter. Sigma 50mm f/1.4 is weather sealed.
The Samyang 50mm F1.4 AS UMC is a 50mm f/1.4 prime, and the Sigma A 50 mm f/1.4 DG DN is a 50mm f/1.4 prime. On paper the Sigma A 50 mm f/1.4 DG DN comes out ahead, 4 advantages to 3, but which one suits you depends on what you shoot.
Samyang 50mm F1.4 AS UMC 
Sigma A 50 mm f/1.4 DG DN 01
Key differences
Why is the Samyang 50mm F1.4 AS UMC better than the Sigma A 50 mm f/1.4 DG DN?
- 85 g lighter (575 g vs 660 g)
- 30 mm shorter (81.6 mm vs 111.5 mm long)
- Higher maximum magnification (0.17x vs 0.15x)
Why is the Sigma A 50 mm f/1.4 DG DN better than the Samyang 50mm F1.4 AS UMC?
- Is weather sealed
- More aperture blades (11 vs 8)
- Smaller filter thread (72 mm vs 77 mm)
- Newer design (2023 vs 2015)
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Which should you buy?
- portrait For portrait photography, the Samyang 50mm F1.4 AS UMC has the edge: it is 85 g lighter to carry.
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Specification
| Specification | Samyang 50mm F1.4 AS UMC | Sigma A 50 mm f/1.4 DG DN |
|---|---|---|
| Focal length | 50mm | 50mm |
| Maximum aperture | f/1.4 | f/1.4 |
| Minimum aperture | f/22 | f/16 |
| Lens type | Standard prime lens | Prime lens |
| Format | Full Frame | Full frame |
| Weight | 575 g (1.27 lbs) ◆ | 660 g (23.28 oz) |
| Dimensions | 73.5 mm (diameter) x 81.6 mm (length) | 111.5 x 78.2 mm |
| Minimum focusing distance | 0.45 m (17.72 in) | 0.45 m (17.72 inches) |
| Maximum magnification | 0.17x ◆ | 0.15x |
| Image stabilization | No | No |
| Weather sealing | No | Yes (dust and splash resistant) ◆ |
| Aperture ring | Yes | Yes (de-clickable) |
| Aperture blades | 8 | 11 ◆ |
| Optical construction | 9 elements in 6 groups | 14 elements / 11 groups |
| Filter size | 77 mm | 72 mm ◆ |
| Lens mount | Canon EF, Nikon F, Pentax K, Sony A, Sony E | Sony E, L-Mount |
| Released | 2015 | 2023 |
| Price | — | $939 list price |
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Size
- A · Samyang
- B · Sigma
- 81.6 × 73.5 mm
- 111.5 × 78.2 mm
The Sigma A 50 mm f/1.4 DG DN is 30 mm longer and 85 g heavier than the Samyang 50mm F1.4 AS UMC.
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Sample frames
Samyang 50mm F1.4 AS UMC
Sigma A 50 mm f/1.4 DG DN
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Video reviews
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Questions
- Which is lighter, the Samyang 50mm F1.4 AS UMC or the Sigma A 50 mm f/1.4 DG DN?
- The Samyang 50mm F1.4 AS UMC weighs 575 g, 85 g less than the Sigma A 50 mm f/1.4 DG DN (660 g).
- Do the Samyang 50mm F1.4 AS UMC and the Sigma A 50 mm f/1.4 DG DN have image stabilization?
- No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
- Is the Samyang 50mm F1.4 AS UMC or the Sigma A 50 mm f/1.4 DG DN better for portrait photography?
- For portrait photography, the Samyang 50mm F1.4 AS UMC has the edge: it is 85 g lighter to carry.
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Other comparisons
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- Samyang 50mm F1.4 AS UMC vs Sony FE 50mm F1.4 GM
- Samyang 50mm F1.4 AS UMC vs Sony Planar T* FE 50mm F1.4 ZA
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- Carl Zeiss Otus ML 50 mm f/1.4 vs Samyang 50mm F1.4 AS UMC