Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Tamron
97 综合评分
vs
Canon L-series EF 100-400mm f/4.5-5.6L IS II USM
Canon
65 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
Canon L-series EF 100-400mm f/4.5-5.6L IS II USM
88 满分 100 置信度高 135 条评价
佳能EF 100-400mm f/4.5-5.6L IS II USM镜头因其出色的锐度、快速自动对焦和坚固的做工而广受赞誉。用户强调其在野生动物、体育甚至微距摄影中的多功能性，指出它在图像质量上优于适马和腾龙150-600mm等竞争对手。然而，一些人批评价格上涨和偶尔的锐度不一致，少数用户报告在特定相机机身上使用增距镜时自动对焦受限。
优点
- 出色的锐度
- 快速准确的自动对焦
- 多功能变焦范围（100-400mm）
- 优秀的图像稳定
- 坚固的做工
缺点
- 价格随时间上涨
- 重量较重
- 使用2倍增距镜时自动对焦受限
- 部分镜头锐度不足
- 不适合索尼无反相机
Image quality 45
Autofocus performance 30
Build quality 25
Versatility 20
Image stabilization 15
Price value 12
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 | Canon L-series EF 100-400mm f/4.5-5.6L IS II USM | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 17 mm | 100 mm |
| Focal Length Max | 70 mm | 400 mm |
| Elements | 16 | 21 |
| Groups | 12 | 16 |
| Aspherical Elements | 3 | 4★ |
| ED Elements | 2★ | 1 |
| Coating | Fluorine Coating | Air Sphere Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/100 |
| Min Aperture | f/2.8 | 4.5-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Sony E | Canon EF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 1.64 kg |
| Filter Thread | 67 mm | 77 mm |
| AF & Stabilization | ||
| AF Type | RXD | USM★ |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | — | 4 stops★ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 980 mm |
| Max Magnification | 1:4.8★ | 0.31x |
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
Canon L-series EF 100-400mm f/4.5-5.6L IS II USM
- Strong optical (98th percentile)98th %ile
- Strong af (94th percentile)94th %ile
- Strong stabilization (93rd percentile)93rd %ile
- Strong versatility (88th percentile)88th %ile
- Below average aperture (1st percentile)1st %ile
- Below average bokeh (1st percentile)1st %ile
- Below average build (16th percentile)16th %ile
- Below average macro (32nd percentile)
价格
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 22 specs.
