Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Tamron Di III VC VXD AF020N700 28-300mm
Tamron
70 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 VXD AF020N700 28-300mm
45 满分 100 置信度低 8 条评价
腾龙 AF 28-300mm f/3.5-6.3 XR Di LD VC 镜头收到了用户褒贬不一的评价。一些用户称赞其多功能性、轻巧设计和良好的性价比，尤其适合旅行和日常摄影。然而，多位用户报告了自动对焦可靠性、图像清晰度和镜头滑出方面的严重问题，有些在短时间内就出现故障。这款镜头似乎对某些人来说效果不错，但存在明显的质量控制和兼容性问题。
优点
- 多功能变焦范围
- 轻巧便携
- 性价比高
- 防抖补偿
- 适合旅行和日常使用
缺点
- 自动对焦可靠性问题
- 图像有时偏软
- 镜头滑出问题
- 自动对焦操作噪音大
- 高光圈导致弱光性能差
Autofocus reliability 4
Image quality 5
Build quality 3
Value for money 4
Portability 3
Lens creep 2
评分
Travel
Macro
Budget
Street
Professional
Portrait
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III VC VXD AF020N700 28-300mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 28 mm |
| Focal Length Max | 50 mm | 300 mm |
| Elements | 13 | 19 |
| Groups | 10 | 15 |
| Aspherical Elements | 3 | 4★ |
| ED Elements | 1 | 4★ |
| Coating | Super Multi-Layer Coating | XR (Extra Refractive Index) glass |
| Aperture | ||
| Max Aperture | f/2.8 | f/4 |
| Min Aperture | f/2.8 | 3.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.54 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | VXD |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 490 mm |
| Max Magnification | 1:2.8 | 1:3.5 |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (87th percentile)87th %ile
- Strong af (86th percentile)86th %ile
Tamron Di III VC VXD AF020N700 28-300mm
- Strong optical (99th percentile)99th %ile
- Strong versatility (98th percentile)98th %ile
- Strong stabilization (81st percentile)81st %ile
- Strong aperture (69th percentile)
- Below average user sentiment (2nd percentile)2nd %ile
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.149每美元得分
vs
Tamron Di III VC VXD AF020N700 28-300mm0.192每美元得分
Tamron Di III VC VXD AF020N700 28-300mm 性价比高 1.3 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 8 of 9 usage categories and 4 of 21 specs.
