Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD
Tamron
93 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 18-300mm f/3.5-6.3 Di III-A VC VXD
82 满分 100 置信度中 16 条评价
Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD 被广泛称赞为索尼APS-C相机的一款多功能全能变焦镜头。用户喜爱其惊人的16.6倍变焦范围、广角端的近摄能力以及扎实的画质，尽管有人指出在70-80mm以上画质变软且自动对焦较慢。该镜头比典型的APS-C镜头更重，但仍被认为便携。少数已验证买家报告长焦端锐度问题和变焦环生涩，但大多数人认为它是替代多支定焦和变焦镜头的出色全能镜头。
优点
- 惊人的16.6倍变焦范围
- 广角端近摄（半微距）
- 良好的画质和色彩还原
- 坚固的机身带防尘防滴
- 有效的防抖（VC）
缺点
- 70-80mm以上画质变软
- 自动对焦比小型变焦慢
- 对APS-C来说又重又大
- 变焦环缩回时生涩
- 两端有中度畸变
Zoom range 12
Image quality 10
Autofocus speed 6
Build quality 8
Weight and size 7
Close focusing 5
评分
Travel
Budget
Street
Portrait
Macro
Professional
Landscape
Video Cinema
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 18 mm |
| Focal Length Max | 50 mm | 300 mm |
| Elements | 13 | 19 |
| Groups | 10 | 5 |
| Aspherical Elements | 3 | 3 |
| ED Elements | 1 | 4★ |
| Coating | Super Multi-Layer Coating | Fluorine Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/3.5 |
| Min Aperture | f/2.8 | 3.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.62 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | VXD |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 150 mm |
| Max Magnification | 1:2.8 | 1:2 |
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 18-300mm f/3.5-6.3 Di III-A VC VXD
- Strong versatility (99th percentile)99th %ile
- Strong optical (95th percentile)95th %ile
- Strong macro (89th percentile)89th %ile
- Strong stabilization (81st percentile)81st %ile
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.179每美元得分
vs
Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD0.115每美元得分
Sigma Contemporary 18-50mm f/2.8 DC DN 性价比高 1.6 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 3 of 9 usage categories and 4 of 21 specs.
