Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
92 综合评分
vs
Pentax HD PENTAX-DA 55-300mm f/4.5-6.3 ED PLM WR RE
Pentax
69 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
Pentax HD PENTAX-DA 55-300mm f/4.5-6.3 ED PLM WR RE
85 满分 100 置信度中 18 条评价
Pentax HD DA 55-300mm f/4.5-6.3 ED PLM WR RE镜头因其锐度、快速自动对焦和轻巧设计而备受赞誉。从旧版本升级的用户注意到光学和聚焦速度的显著改进。防风雨密封和紧凑尺寸使其成为户外摄影的多功能选择，尽管有些人觉得它稍重，并指出与旧胶片相机的兼容性限制。
优点
- 锐利的图像质量
- 快速安静的自动对焦
- 轻巧紧凑的设计
- 户外使用的防风雨密封
- 性价比高
缺点
- 对某些用户来说稍重
- 没有用于旧相机的光圈环
- 不兼容增距镜
- 与胶片相机兼容性有限
Image quality 6
Autofocus speed 5
Build quality 4
Value for money 4
Weight 3
Compatibility 3
评分
Street
Travel
Professional
Budget
Macro
Portrait
Video Cinema
Wildlife Sports
Landscape
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Pentax HD PENTAX-DA 55-300mm f/4.5-6.3 ED PLM WR RE | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 55 mm |
| Focal Length Max | 50 mm | 300 mm |
| Elements | 13 | 14 |
| Groups | 10 | 11 |
| Aspherical Elements | 3★ | 0 |
| ED Elements | 1★ | 0 |
| Coating | Super Multi-Layer Coating | HD coating, SP coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/4.5 |
| Min Aperture | f/2.8 | 4.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Fujifilm X | Pentax K |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.44 kg |
| Filter Thread | 55 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | PLM |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 50 mm★ | 930 mm |
| Max Magnification | 1:2.8 | 1:3.33 |
优缺点
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (96th percentile)96th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
- Strong build (85th percentile)85th %ile
Pentax HD PENTAX-DA 55-300mm f/4.5-6.3 ED PLM WR RE
- Strong versatility (95th percentile)95th %ile
- Strong social proof (86th percentile)86th %ile
- Strong bokeh (78th percentile)
- Strong build (75th percentile)
结论
胜出: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 92 overall, wins 9 of 9 usage categories and 6 of 21 specs.