Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Tamron Di III VC 70-180mm f/2.8 Di III VC VXD G2
Tamron
74 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
Tamron Di III VC 70-180mm f/2.8 Di III VC VXD G2
85 满分 100 置信度高 60 条评价
Tamron 70-180mm f/2.8 G2 因其锐度、轻量化设计以及与索尼 70-200mm GM II 等更昂贵的原厂镜头相比出色的性价比而广受赞誉。用户强调其快速自动对焦、有效的图像稳定和坚固的构造，使其成为运动、野生动物和日常长焦摄影的首选。一些担忧包括缺乏 200mm 焦距、可伸缩前部可能进灰以及个别关于无完整保修的灰色市场产品的报告。总体而言，它以低廉的成本提供了专业级的效果。
优点
- 整个变焦范围内出色的锐度
- 轻巧便携的设计
- 卓越的性价比
- 快速准确的自动对焦
- 有效的图像稳定
缺点
- 缺乏竞争对手的200mm焦距
- 可伸缩前部元件可能积灰
- 灰色市场产品无完整保修
- 非齐焦
- 不兼容增距镜
Sharpness 18
Value for money 15
Weight and portability 14
Autofocus performance 12
Image stabilization 8
Build quality 10
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III VC 70-180mm f/2.8 Di III VC VXD G2 | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 70 mm |
| Focal Length Max | 50 mm | 180 mm |
| Elements | 13 | 20 |
| Groups | 10 | 15 |
| Aspherical Elements | 3 | 3 |
| ED Elements | 1 | 4★ |
| Coating | Super Multi-Layer Coating | BBAR-G2 |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.85 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | VXD |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 5 stops★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 300 mm |
| Max Magnification | 1:2.8 | 1:2.6 |
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
Tamron Di III VC 70-180mm f/2.8 Di III VC VXD G2
- Strong optical (98th percentile)98th %ile
- Strong stabilization (97th percentile)97th %ile
- Strong social proof (86th percentile)86th %ile
- Strong versatility (78th percentile)
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
价格
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 8 of 9 usage categories and 3 of 22 specs.
