Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Nikon NIKKOR AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR 40mm
Nikon
83 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
Nikon NIKKOR AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR 40mm
82 满分 100 置信度中 20 条评价
尼康18-140mm镜头因其多功能性、清晰度和作为日常摄影一镜走天下的便利性而广受好评。用户赞赏它在各种尼康DX相机上的表现，尽管有人指出它有点重，而且一台翻新机到货时状况不佳。总体而言，它为初学者和爱好者提供了极佳的性价比。
优点
- 多功能一镜走天下变焦范围
- 清晰锐利的图像质量
- 适合人像、风景和运动
- 日常携带方便
- 翻新机性价比高
缺点
- 对部分用户来说稍重
- 翻新机到货时又脏又有凹痕
- 非VR II版本（仅VR）
- 部分套装滤镜尺寸不匹配
Versatility 6
Image quality 5
Value for money 4
Compatibility 5
Weight 2
Refurbished condition 2
评分
Travel
Street
Budget
Professional
Macro
Video Cinema
Portrait
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Nikon NIKKOR AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR 40mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 18 mm |
| Focal Length Max | 50 mm | 140 mm |
| Elements | 13 | 17 |
| Groups | 10 | 12 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | Super Integrated Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/3.5 |
| Min Aperture | f/2.8 | 3.5-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Nikon F |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg★ | 0.49 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | Silent Wave Motor |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 4 stops★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 450 mm |
| Max Magnification | 1:2.8★ | 0.23x |
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 af (87th percentile)87th %ile
- Strong build (86th percentile)86th %ile
Nikon NIKKOR AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR 40mm
- Strong versatility (96th percentile)96th %ile
- Strong stabilization (93rd percentile)93rd %ile
- Strong social proof (90th percentile)90th %ile
- Strong optical (84th percentile)84th %ile
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 9 of 9 usage categories and 7 of 22 specs.