Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Tamron Di III VXD 50-400mm F/4.5-6.3
Tamron
84 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 VXD 50-400mm F/4.5-6.3
85 满分 100 置信度高 33 条评价
Tamron 50-400mm f/4.5-6.3 Di III VC VXD 因其多功能变焦范围、锐利的图像质量和出色的性价比而广受赞誉。用户强调其在野生动物、运动和旅行摄影中的实用性，尽管有些人指出它比预期重，且最大光圈限制了弱光性能。一些索尼用户报告了与某些相机机身搭配时图像稳定性的问题，但总体评价非常积极。
优点
- 多功能 50-400mm 变焦范围
- 锐利的图像质量
- 出色的性价比
- 良好的做工质量
- 快速安静的自动对焦
缺点
- 比预期重
- 小光圈导致弱光性能受限
- 与某些索尼机身存在防抖问题
- 不含镜头脚架环
- 与更快镜头相比略暗
Zoom range versatility 12
Image quality sharpness 14
Value for money 10
Build quality 8
Weight and portability 9
Low light performance 5
评分
Travel
Budget
Street
Macro
Professional
Portrait
Video Cinema
Wildlife Sports
Landscape
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III VXD 50-400mm F/4.5-6.3 | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 18 mm | 50 mm |
| Focal Length Max | 50 mm | 400 mm |
| Elements | 13 | 24 |
| Groups | 10 | 18 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | BBAR-G2 |
| Aperture | ||
| Max Aperture | f/2.8 | f/6.3 |
| Min Aperture | f/2.8 | 4.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 1.18 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | VXD linear motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 250 mm |
| Max Magnification | 1:2.8 | 1:2 |
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 (85th percentile)85th %ile
- Strong af (85th percentile)85th %ile
- Below average stabilization (35th percentile)
Tamron Di III VXD 50-400mm F/4.5-6.3
- Strong af (98th percentile)98th %ile
- Strong versatility (97th percentile)97th %ile
- Strong optical (96th percentile)96th %ile
- Strong stabilization (80th percentile)80th %ile
- Below average build (24th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.212每美元得分
vs
Tamron Di III VXD 50-400mm F/4.5-6.30.065每美元得分
Sigma Contemporary 18-50mm f/2.8 DC DN 性价比高 3.3 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 6 of 9 usage categories and 5 of 21 specs.
