Pentax HD Pentax-D FA 50mm f/1.4 50mm
Pentax
44 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 HD Pentax-D FA 50mm f/1.4 50mm
暂无用户反馈
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 HD Pentax-D FA 50mm f/1.4 50mm | Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 50 mm | 28 mm |
| Focal Length Max | 50 mm | 300 mm |
| Elements | 7 | 20 |
| Groups | 6 | 13 |
| Aspherical Elements | 1 | 3★ |
| ED Elements | 1 | 2★ |
| Coating | Multilayer HD Coating | fluorine coating |
| Aperture | ||
| Max Aperture | f/22 | f/4 |
| Min Aperture | f/1.4 | 4-7.1 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 8 | 9★ |
| Build | ||
| Mount | Pentax K | Sony E |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.91 kg | 0.59 kg★ |
| Filter Thread | 49 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Autofocus | VXD linear motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 450 mm | 190 mm★ |
| Max Magnification | 1:6.67 | 1:2.8 |
优缺点
Pentax HD Pentax-D FA 50mm f/1.4 50mm
- Strong social proof (86th percentile)86th %ile
- Below average bokeh (19th percentile)19th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th 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 HD Pentax-D FA 50mm f/1.4 50mm0.111每美元得分
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD0.157每美元得分
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 性价比高 1.4 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.
