Pentax DA 21430 70mm
Pentax
45 综合评分
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD
Tamron
100 综合评分
买家怎么说
Pentax DA 21430 70mm
85 满分 100 置信度中 12 条评价
宾得HD DA 70mm f/2.4 Limited是一款紧凑型定焦镜头，具有出色的锐度、美丽的色彩还原和柔和的虚化效果，非常适合人像和旅行摄影。用户称赞其防风雨结构、快速自动对焦和可伸缩遮光罩，但有些人指出在APS-C相机上用于狭小空间时可能稍长。与旧版SMC相比，HD镀膜改善了抗眩光和色彩传输。总体而言，强烈推荐给寻求高质量、便携式远摄定焦镜头的宾得用户。
优点
- 出色的锐度
- 美丽的色彩还原
- 柔和的虚化
- 紧凑便携
- 防风雨结构
缺点
- 在APS-C上用于狭小空间时稍长
- 对某些人来说虚化效果不惊艳
- 对焦环手感不高级
- 遮光罩收回时镜头盖可能脱落
- 仅适用于裁幅传感器相机
Image quality 8
Build quality 6
Portability 5
Autofocus performance 4
Bokeh quality 4
Hd coating 3
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD
92 满分 100 置信度中 13 条评价
腾龙28-300mm超级变焦镜头因其轻便设计、多功能焦段和可靠的成像质量而受到称赞。用户赞赏其紧凑的做工和顺滑的变焦环，但指出光圈较小，锐度相比更昂贵的变焦镜头略有不足。经过验证的购买者推荐它作为搭配索尼机身的理想旅行镜头。
优点
- 轻便设计
- 多功能28-300mm焦段
- 顺滑的变焦环
- 紧凑构造适合旅行
- 与索尼机身良好兼容
缺点
- 最大光圈较小 (f/4-7.1)
- 相比高端变焦镜头锐度降低
- 非内变焦设计
- 某些机身上高帧率自动对焦较慢
Build quality 3
Sharpness 3
Aperture 2
Weight and portability 3
Zoom range 4
Autofocus performance 1
评分
Budget
Macro
Portrait
Landscape
Professional
Wildlife Sports
Street
Travel
Video Cinema
规格
| Pentax DA 21430 70mm | Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 70 mm | 28 mm |
| Focal Length Max | 70 mm | 300 mm |
| Elements | 6 | 20 |
| Groups | 5 | 13 |
| Aspherical Elements | 0 | 3★ |
| ED Elements | — | 2★ |
| Coating | HD coating | fluorine coating |
| Aperture | ||
| Max Aperture | f/22 | f/4 |
| Min Aperture | f/2.4 | 4-7.1 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Pentax K | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.15 kg★ | 0.59 kg |
| Filter Thread | 49 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Autofocus | VXD linear motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 701 mm | 190 mm★ |
| Max Magnification | 1:8 | 1:2.8 |
优缺点
Pentax DA 21430 70mm
- Strong build (89th percentile)89th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
- Below average optical (31st percentile)
- Below average versatility (33rd percentile)
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD
- Strong versatility (98th percentile)98th %ile
- Strong af (98th percentile)98th %ile
- Strong optical (96th percentile)96th %ile
- Strong user sentiment (91st percentile)91st %ile
价格
Pentax DA 21430 70mm0.004每美元得分
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD0.007每美元得分
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 性价比高 1.8 倍
结论
胜出: Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD
Scores 100 overall, wins 9 of 9 usage categories and 7 of 21 specs.
