Samyang AF 50mm f/1.4 AS UMC 50mm
Its bright f/1.4 aperture and 9-blade diaphragm produce smooth bokeh, while the optical design with 2 aspherical and 1 ED element delivers sharp images in a compact 420g build. A linear STM motor enables fast, silent autofocus for stills and video, and weather sealing adds reliability in harsh conditions. This lens suits Sony E-mount portrait photographers who need a lightweight, weather-resistant 50mm with quick AF and cinematic focus transitions.
Snapshot
优缺点
Pros
Cons
What owners think
用户口碑如何随时间变化
独家依据客户实际撰写评价的时间——让你看到最初的好评是否持续。
基于 21 条带日期的客户评价,按日历季度分组。分期分析为英文。
The proof
性能表现
规格参数
完整规格参数
Optics
| Type | prime |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 9 |
| Groups | 6 |
| Aspherical Elements | 1 |
| ED Elements | 1 |
| Coating | Ultra Multi-Coating |
Aperture
| Max Aperture | 22 |
| Min Aperture | 1.4 |
| Constant | Yes |
| Diaphragm Blades | 8 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | No |
| Weight | 0.4 kg / 0.9 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 450 |
| Max Magnification | 1:6.25 |
竞品对比
| Spec | Samyang AF 50mm f/1.4 AS UMC 50mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon Nikkor 2166 | Panasonic LUMIX S S-R28200 | Canon EF-S 18-135mm f/3.5-5.6 IS USM |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 16-300mm | 18-300mm | 55-200mm | 28-200mm | 18-135mm |
| Max Aperture | 22 | f/3.5 | f/3.5 | f/4 | f/4 | f/3.5 |
| Mount | Sony E | Sony E | Fuji X | Nikon F | L-Mount | Canon EF-S |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | false | false | true | false |
| Weight (g) | 420 | 615 | 92 | 255 | 413 | 515 |
| AF Type | manual focus only | HLA | VXD linear motor | Silent Wave Motor | Autofocus | STM |
| Lens Type | prime | zoom | zoom | telephoto | macro | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Samyang AF 50mm f/1.4 AS UMC 50mm | 14.5 | 21.9 | 57.4 | 55.1 | 52.1 | 24.6 | 34.1 | 47.4 | 36 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.8 | 84.6 | 58.7 | 85.9 | 98.9 | 77.5 | 99.6 | 78 | 99 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.3 | 75.5 | 96.4 | 87.8 | 74.3 | 77.5 | 99.2 | 83.1 | 81.1 |
| Nikon Nikkor 2166 Compare | 54.8 | 70.2 | 77 | 81.2 | 66.4 | 71.8 | 85.3 | 83.1 | 92.5 |
| Panasonic LUMIX S S-R28200 Compare | 54.8 | 78.4 | 74.2 | 70.8 | 91.2 | 71.8 | 95.6 | 62.2 | 99.4 |
| Canon EF-S 18-135mm f/3.5-5.6 IS USM Compare | 86.6 | 75.5 | 46.8 | 33.3 | 79.8 | 77.5 | 96 | 78 | 92.5 |