Samyang 50mm F1.4 AS UMC § 03 Head to head
Samyang 50mm F1.4 AS UMC vs Sony FE 50mm F1.4 GM
Samyang 50mm f/1.4 is 14 mm shorter. Sony 50mm f/1.4 is 59 g lighter.
The Samyang 50mm F1.4 AS UMC is a 50mm f/1.4 prime, and the Sony FE 50mm F1.4 GM is a 50mm f/1.4 prime. On paper the Sony FE 50mm F1.4 GM comes out ahead, 6 advantages to 1, but which one suits you depends on what you shoot.
Samyang 50mm F1.4 AS UMC 
Sony FE 50mm F1.4 GM 01
Key differences
Why is the Samyang 50mm F1.4 AS UMC better than the Sony FE 50mm F1.4 GM?
- 14 mm shorter (81.6 mm vs 96 mm long)
Why is the Sony FE 50mm F1.4 GM better than the Samyang 50mm F1.4 AS UMC?
- 59 g lighter (516 g vs 575 g)
- Focuses 7 cm closer (0.38 m vs 0.45 m)
- Is weather sealed
- More aperture blades (11 vs 8)
- Smaller filter thread (67 mm vs 77 mm)
- Newer design (2023 vs 2015)
02
Which should you buy?
- portrait For portrait photography, the Sony FE 50mm F1.4 GM has the edge: it is 59 g lighter to carry.
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Specification
| Specification | Samyang 50mm F1.4 AS UMC | Sony FE 50mm F1.4 GM |
|---|---|---|
| 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) | 516 g (1.14 lbs) ◆ |
| Dimensions | 73.5 mm (diameter) x 81.6 mm (length) | 80.6 mm (diameter) x 96 mm (length) |
| Minimum focusing distance | 0.45 m (17.72 in) | 0.38 m (15 inches) ◆ |
| Maximum magnification | 0.17x | 0.18x ◆ |
| Image stabilization | No | No |
| Weather sealing | No | Yes ◆ |
| Aperture ring | Yes | Yes |
| Aperture blades | 8 | 11 (rounded) ◆ |
| Optical construction | 9 elements in 6 groups | 14 elements in 11 groups |
| Filter size | 77 mm | 67 mm ◆ |
| Lens mount | Canon EF, Nikon F, Pentax K, Sony A, Sony E | Sony E |
| Released | 2015 | 2023 |
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Size
- A · Samyang
- B · Sony
- 81.6 × 73.5 mm
- 96 × 80.6 mm
The Sony FE 50mm F1.4 GM is 14 mm longer and 59 g lighter than the Samyang 50mm F1.4 AS UMC.
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Sample frames
Samyang 50mm F1.4 AS UMC
Sony FE 50mm F1.4 GM
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Video reviews
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Questions
- Which is lighter, the Samyang 50mm F1.4 AS UMC or the Sony FE 50mm F1.4 GM?
- The Sony FE 50mm F1.4 GM weighs 516 g, 59 g less than the Samyang 50mm F1.4 AS UMC (575 g).
- Which focuses closer, the Samyang 50mm F1.4 AS UMC or the Sony FE 50mm F1.4 GM?
- The Sony FE 50mm F1.4 GM focuses down to 0.38 m, against 0.45 m for the Samyang 50mm F1.4 AS UMC.
- Do the Samyang 50mm F1.4 AS UMC and the Sony FE 50mm F1.4 GM 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 Sony FE 50mm F1.4 GM better for portrait photography?
- For portrait photography, the Sony FE 50mm F1.4 GM has the edge: it is 59 g lighter to carry.
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Other comparisons
- HD Pentax FA 50mm F1.4 vs Samyang 50mm F1.4 AS UMC
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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 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
- Samyang 50mm F1.4 AS UMC vs Sigma A 50 mm f/1.4 DG DN