Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD
Tamron
73 综合评分
vs
Sony FE SEL2070G 20-70mm
Sony
82 综合评分
买家怎么说
Tamron Di III-A 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
Sony FE SEL2070G 20-70mm
85 满分 100 置信度中 11 条评价
索尼20-70mm f4 G镜头因其锐度、紧凑尺寸和多功能焦距而备受赞誉，是出色的旅行伴侣。用户欣赏其相比24-105mm在广角端多出的4mm，这增强了风景摄影的创意选择。少数缺点包括广角端明显的像场弯曲以及缺乏防止镜头伸出的变焦锁。总体而言，它被认为是对套机镜头和旧型号的重大升级。
优点
- 出色的边缘到边缘锐度
- 紧凑轻巧的设计
- 多功能20-70mm焦距范围
- 非常适合旅行和风景
- 快速可靠的自动对焦
缺点
- 广角端明显的像场弯曲
- 没有变焦锁防止镜头伸出
- 在黑暗室内使用f4时轻微噪点
- 没有f2.8版本
Sharpness 6
Build quality 4
Portability 5
Focal range 5
Autofocus 2
Field curvature 2
评分
Budget
Macro
Professional
Portrait
Landscape
Street
Travel
Video Cinema
Wildlife Sports
规格
| Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD | Sony FE SEL2070G 20-70mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 20 mm |
| Focal Length Max | 70 mm | 70 mm |
| Elements | 16 | 16 |
| Groups | 12 | 13 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 2 | 4★ |
| Coating | Fluorine Coating | fluorine coatings |
| Aperture | ||
| Max Aperture | f/22 | f/4 |
| Min Aperture | f/2.8 | f/4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Nikon Z | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg | 0.49 kg★ |
| Filter Thread | 67 mm | 72 mm |
| AF & Stabilization | ||
| AF Type | RXD Stepping AF Motor | Autofocus |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 70 mm★ | 250 mm |
| Max Magnification | 1:4.8★ | 0.39x |
优缺点
Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD
- Strong macro (94th percentile)94th %ile
- Strong optical (90th percentile)90th %ile
- Strong versatility (90th percentile)90th %ile
- Strong af (85th percentile)85th %ile
- Below average social proof (17th percentile)17th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
Sony FE SEL2070G 20-70mm
- Strong social proof (94th percentile)94th %ile
- Strong optical (93rd percentile)93rd %ile
- Strong versatility (85th percentile)85th %ile
- Strong bokeh (81st percentile)81st %ile
结论
胜出: Sony FE SEL2070G 20-70mm
Scores 82 overall, wins 6 of 9 usage categories and 3 of 21 specs.