Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
99 综合评分
vs
Canon EF-S 55-250mm F4-5.6 IS STM
Canon
87 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
Canon EF-S 55-250mm F4-5.6 IS STM
82 满分 100 置信度高 331 条评价
佳能 EF-S 55-250mm f/4-5.6 IS STM 镜头因其出色的锐度、快速安静的自动对焦和轻巧的设计而广受赞誉，对于业余摄影师和野生动物爱好者来说，性价比极高。许多用户强调长焦端令人印象深刻的画质和有效的图像稳定功能，尽管有些人注意到超过 200mm 时画质变软，最大光圈下有明显暗角。少数评论者遇到了质量控制问题，如图像模糊或对焦环失灵，但压倒性的共识是，这款镜头在其价位上提供了卓越的性能。
优点
- 价格下出色的锐度
- 快速安静的STM自动对焦
- 轻巧紧凑的设计
- 有效的图像稳定
- 极佳的性价比
缺点
- 超过200mm画质变软
- 最大光圈下明显暗角
- 塑料制造工艺
- 电子手动对焦需要相机供电
- 最大光圈较慢（250mm 时为 f/5.6）
Image quality 45
Autofocus performance 30
Value for money 35
Build quality 20
Image stabilization 18
Sharpness at long end 25
评分
Travel
Budget
Street
Professional
Portrait
Macro
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Canon EF-S 55-250mm F4-5.6 IS STM | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 18 mm | 55 mm |
| Focal Length Max | 50 mm | 250 mm |
| Elements | 13 | 15 |
| Groups | 10 | 12 |
| Aspherical Elements | 3★ | 0 |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | Super Spectra coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/4 |
| Min Aperture | f/2.8 | 4-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Canon EF-S |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg★ | 0.38 kg |
| Filter Thread | 55 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 4 stops★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 250 mm |
| Max Magnification | 1:2.8★ | 0.29x |
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 (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Canon EF-S 55-250mm F4-5.6 IS STM
- Strong stabilization (93rd percentile)93rd %ile
- Strong versatility (92nd percentile)92nd %ile
- Strong af (85th percentile)85th %ile
- Strong social proof (81st percentile)81st %ile
价格
Sigma Contemporary 18-50mm f/2.8 DC DN0.145每美元得分
vs
Canon EF-S 55-250mm F4-5.6 IS STM0.259每美元得分
Canon EF-S 55-250mm F4-5.6 IS STM 性价比高 1.8 倍
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 99 overall, wins 9 of 9 usage categories and 6 of 22 specs.
