Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Tamron
97 综合评分
vs
Pentax HD PENTAX-DA 55-300mm f/4.5-6.3 ED PLM WR RE
Pentax
71 综合评分
买家怎么说
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
85 满分 100 置信度高 62 条评价
腾龙17-70mm f/2.8 Di III-A VC RXD镜头因锐度高、变焦范围广、恒定光圈和有效的防抖性能而广受好评，是APS-C相机的卓越全能镜头。用户赞赏其扎实的做工和性价比，但许多人指出它明显比套机镜头更重更大，在小型机身上会感到头重脚轻。少数评测提到长焦端色散和特定设置下的光圈叶片噪音等小问题，但整体来看评价非常积极。
优点
- 全焦段成像锐利
- 恒定 f/2.8 光圈
- 有效的防抖性能
- 快速静音自动对焦
- 17-70mm 焦段非常实用
缺点
- 对 APS-C 机身而言太重太大
- 50-70mm 端色散明显
- 光圈在 f/5.6 以上有噪音
- 变焦环初始偏紧
- 富士版本没有光圈环
Image quality 27
Build quality 15
Weight and size 18
Value for money 14
Stabilization 12
Autofocus performance 11
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
Video Cinema
Budget
Macro
Professional
Portrait
Travel
Landscape
Street
Wildlife Sports
规格
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Pentax HD PENTAX-DA 55-300mm f/4.5-6.3 ED PLM WR RE | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 55 mm |
| Focal Length Max | 70 mm | 300 mm |
| Elements | 16 | 14 |
| Groups | 12 | 11 |
| Aspherical Elements | 3★ | 0 |
| ED Elements | 2★ | 0 |
| Coating | Fluorine 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 | 9 | 9 |
| Build | ||
| Mount | Sony E | Pentax K |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg | 0.44 kg★ |
| Filter Thread | 67 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | RXD | PLM |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 930 mm |
| Max Magnification | 1:4.8 | 1:3.33 |
优缺点
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
- Strong optical (90th percentile)90th %ile
- Strong versatility (90th percentile)90th %ile
- Strong bokeh (89th percentile)89th %ile
- Strong aperture (86th percentile)86th %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 (79th percentile)
- Strong build (75th percentile)
结论
胜出: Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Scores 97 overall, wins 9 of 9 usage categories and 5 of 21 specs.