Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Rokinon 100mm f/2.8 Macro 100mm
Rokinon
28 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
Rokinon 100mm f/2.8 Macro 100mm
72 满分 100 置信度中 18 条评价
Rokinon 100mm f/2.8 微距镜头因其锐度、做工和性价比而普遍获得好评。用户欣赏手动对焦和光圈控制用于微距拍摄，但有些人指出缺乏自动对焦和镜头重量是缺点。一些评论者认为它在Micro Four Thirds传感器上不够锐利，但总体而言，它因以实惠的价格提供出色的微距图像而受到称赞。
优点
- 图像锐利
- 做工扎实
- 性价比高
- 手动对焦顺滑
- 出色的微距能力
缺点
- 无自动对焦
- 重量较重
- 在Micro Four Thirds上锐度下降
- 仅手动光圈
- 不含脚架环
Image quality 6
Build quality 4
Value for money 5
Manual focus 5
Weight 3
Autofocus absence 3
评分
Travel
Street
Budget
Professional
Macro
Video Cinema
Portrait
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Rokinon 100mm f/2.8 Macro 100mm | |
|---|---|---|
| Optics | ||
| Type | zoom | macro |
| Focal Length Min | 18 mm | 100 mm |
| Focal Length Max | 50 mm | 100 mm |
| Elements | 13 | 15 |
| Groups | 10 | 12 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | Ultra Multi-Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/32 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Canon EF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg★ | 0.72 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 307 mm |
| Max Magnification | 1:2.8 | 1:1 |
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
Rokinon 100mm f/2.8 Macro 100mm
- Strong optical (80th percentile)80th %ile
- Strong macro (69th percentile)
- Below average aperture (5th percentile)5th %ile
- Below average bokeh (7th percentile)7th %ile
- Below average af (13th percentile)13th %ile
- Below average user sentiment (16th percentile)16th %ile
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 9 of 9 usage categories and 5 of 21 specs.