Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 综合评分
vs
Tamron Di III 70-300mm f/4.5-6.3 Di III RXD
Tamron
57 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 70-300mm f/4.5-6.3 Di III RXD
78 满分 100 置信度中 12 条评价
这款腾龙70-300mm镜头因其出色的性价比而广受好评，以实惠的价格提供了可靠的远摄和微距性能。许多用户强调中距离和微距下的清晰度，但也有一些用户指出长焦端画质偏软，以及在高对比度场景中明显的色差。做工在同价位中不错，变焦环顺滑，金属卡口，但少数评论者反映对焦不稳定，变焦环有轻微卡顿。总体而言，对于能接受其局限性的用户，这是一款非常推荐的平价远摄镜头。
优点
- 性价比极高
- 微距性能良好（1:2）
- 同价位做工扎实
- 中距离和微距成像锐利
- 自动对焦快速准确
缺点
- 300mm端画质偏软
- 明显的色差
- 变焦环在180-200mm附近有卡顿
- 在某些机身上对焦不稳定
- 不如高端镜头锐利
Value for money 8
Image quality 10
Macro performance 5
Build quality 6
Autofocus performance 4
Chromatic aberration 3
评分
Travel
Budget
Street
Professional
Macro
Portrait
Video Cinema
Landscape
Wildlife Sports
规格
| Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III 70-300mm f/4.5-6.3 Di III RXD | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 18 mm | 70 mm |
| Focal Length Max | 50 mm | 300 mm |
| Elements | 13 | 15 |
| Groups | 10 | 10 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | BBAR (Broad-Band Anti-Reflection) Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | 4.5-6.3 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.54 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | RXD stepping motor |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 800 mm |
| Max Magnification | 1:2.8★ | — |
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 70-300mm f/4.5-6.3 Di III RXD
- Strong versatility (91st percentile)91st %ile
- Strong af (85th percentile)85th %ile
- Strong stabilization (80th percentile)80th %ile
- Strong optical (71st percentile)
- Below average bokeh (14th percentile)14th %ile
- Below average aperture (22nd percentile)
- Below average user sentiment (30th percentile)
价格
Sigma Contemporary 18-50mm f/2.8 DC DN
Tamron Di III 70-300mm f/4.5-6.3 Di III RXD
No current pricing available
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.
