Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Laowa 9mm f/2.8 Zero-D 9mm
Laowa
73 综合评分
买家怎么说
Sigma Contemporary 18-50mm f/2.8 DC DN
88 满分 100 置信度高 91 条评价
Sigma 18-50mm f/2.8 DC DN Contemporary 被广泛称赞为 APS-C 无反相机的一款紧凑、轻便且锐利的标准变焦镜头。用户一致强调其出色的图像质量、快速的 f/2.8 光圈和实惠的价格是主要优势，使其成为套机镜头的热门升级选择。常见的批评包括缺乏光学防抖和遮光罩设计不佳，但总体情绪极为积极。
优点
- 出色的图像锐度
- 紧凑轻巧的设计
- 快速恒定的 f/2.8 光圈
- 物超所值
- 快速安静的自动对焦
缺点
- 无光学防抖
- 遮光罩设计不佳
- 无防尘防滴
- 塑料制造工艺
- 变焦环方向与富士相反
Image quality 25
Build quality 12
Value for money 18
Size and weight 20
Autofocus performance 10
Stabilization 8
Laowa 9mm f/2.8 Zero-D 9mm
82 满分 100 置信度高 31 条评价
Laowa 9mm f/2.8 Zero-D镜头因其紧凑的尺寸、锐利的画质和极小的畸变而广受好评，非常适合风景、建筑和房地产摄影。用户赞赏其宽广的视角和扎实的做工，但部分用户指出全开光圈时有暗角，以及无限远对焦问题。总体而言，这是一款性价比出色的手动超广角镜头。
优点
- 紧凑轻便
- 画质锐利
- 畸变极小（Zero-D）
- 宽广视角
- 做工扎实
缺点
- 全开光圈有暗角
- 无限远对焦不一致
- 个体差异（锐度）
- 仅手动对焦
- 对部分人来说价格偏高
Image quality 12
Build quality 8
Distortion 7
Vignetting 5
Value for money 6
Focus issues 4
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Laowa 9mm f/2.8 Zero-D 9mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 9 mm |
| Focal Length Max | 50 mm | 9 mm |
| Elements | 13 | 15 |
| Groups | 10 | 10 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 3★ |
| Coating | Super Multi-Layer Coating | Frog Eye Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/2.8 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg | 0.21 kg★ |
| Filter Thread | 55 mm | 49 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm | 120 mm★ |
| Max Magnification | 1:2.8 | 1:7.7 |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (86th percentile)86th %ile
Laowa 9mm f/2.8 Zero-D 9mm
- Strong macro (92nd percentile)92nd %ile
- Strong build (91st percentile)91st %ile
- Strong optical (87th percentile)87th %ile
- Strong aperture (86th percentile)86th %ile
- Below average af (14th percentile)14th %ile
- Below average versatility (34th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.008每美元得分
vs
Laowa 9mm f/2.8 Zero-D 9mm0.010每美元得分
Laowa 9mm f/2.8 Zero-D 9mm 性价比高 1.3 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 2 of 21 specs.
