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 HSM
Samyang 50mm f/1.4 is 240 g lighter. Sigma 50mm f/1.4 focuses 5 cm closer.
Both lenses are made for the Canon EF mount: the Samyang 50mm F1.4 AS UMC is a 50mm f/1.4 prime, and the Sigma A 50 mm f/1.4 DG HSM is a 50mm f/1.4 prime. On paper the Samyang 50mm F1.4 AS UMC comes out ahead, 4 advantages to 2, but which one suits you depends on what you shoot.
Samyang 50mm F1.4 AS UMC 
Sigma A 50 mm f/1.4 DG HSM 01
Key differences
Why is the Samyang 50mm F1.4 AS UMC better than the Sigma A 50 mm f/1.4 DG HSM?
- 240 g lighter (575 g vs 815 g)
- 18 mm shorter (81.6 mm vs 100 mm long)
- Has a physical aperture ring
- Newer design (2015 vs 2014)
Why is the Sigma A 50 mm f/1.4 DG HSM better than the Samyang 50mm F1.4 AS UMC?
- Focuses 5 cm closer (0.4 m vs 0.45 m)
- More aperture blades (9 vs 8)
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Which should you buy?
- portrait For portrait photography, the Samyang 50mm F1.4 AS UMC has the edge: it is 240 g lighter to carry.
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Specification
| Specification | Samyang 50mm F1.4 AS UMC | Sigma A 50 mm f/1.4 DG HSM |
|---|---|---|
| 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) ◆ | 815 g (28.75 oz) |
| Dimensions | 73.5 mm (diameter) x 81.6 mm (length) | 85 x 100 mm |
| Minimum focusing distance | 0.45 m (17.72 in) | 0.4 m (15.75 inches) ◆ |
| Maximum magnification | 0.17x | — |
| Image stabilization | No | No |
| Weather sealing | No | — |
| Aperture ring | Yes | No |
| Aperture blades | 8 | 9 ◆ |
| Optical construction | 9 elements in 6 groups | 13 elements / 8 groups |
| Filter size | 77 mm | 77 mm |
| Lens mount | Canon EF, Nikon F, Pentax K, Sony A, Sony E | Canon EF, Nikon F, Sony A, Sigma SA, Sony E, L-Mount |
| Released | 2015 | 2014 |
| Price | — | $949 launch price |
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Size
- A · Samyang
- B · Sigma
- 81.6 × 73.5 mm
- 100 × 85 mm
The Sigma A 50 mm f/1.4 DG HSM is 18 mm longer and 240 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 HSM
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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 HSM?
- The Samyang 50mm F1.4 AS UMC weighs 575 g, 240 g less than the Sigma A 50 mm f/1.4 DG HSM (815 g).
- Which focuses closer, the Samyang 50mm F1.4 AS UMC or the Sigma A 50 mm f/1.4 DG HSM?
- The Sigma A 50 mm f/1.4 DG HSM focuses down to 0.4 m, against 0.45 m for the Samyang 50mm F1.4 AS UMC.
- Do the Samyang 50mm F1.4 AS UMC and the Sigma A 50 mm f/1.4 DG HSM 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 HSM better for portrait photography?
- For portrait photography, the Samyang 50mm F1.4 AS UMC has the edge: it is 240 g lighter to carry.
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Other comparisons
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- Samyang 50mm F1.4 AS UMC vs Yongnuo YN 50 mm f/1.4
- 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
- Samyang 50mm F1.4 AS UMC vs Viltrox AF 50 mm f/1.4 Pro
- Carl Zeiss Otus ML 50 mm f/1.4 vs Samyang 50mm F1.4 AS UMC