Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
Pentax
35 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 smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
82 满分 100 置信度中 19 条评价
宾得50mm f/2.8微距镜头因其锐度、色彩还原和性价比而广受好评。用户认为它非常适合微距摄影、一般摄影以及数字化文档或艺术品。常见的批评包括实时取景下的自动对焦犹豫不决，以及一个会无限旋转的对焦环，有些人觉得这很奇怪。总体而言，它被认为是一款紧凑、高质量的镜头，性能远超其价格。
优点
- 出色的锐度
- 极佳的色彩还原
- 卓越的性价比
- 紧凑轻便
- 微距和日常拍摄两用
缺点
- 实时取景下自动对焦犹豫不决
- 对焦环无限旋转
- 塑料镜筒而非金属
- 大光圈下景深过浅
- 近摄对焦需要学习曲线
Sharpness 8
Value for money 6
Autofocus performance 4
Build quality 4
Color reproduction 3
Versatility 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
Landscape
Wildlife Sports
Professional
Street
Portrait
Video Cinema
Travel
规格
| Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm | Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD | |
|---|---|---|
| Optics | ||
| Type | macro | zoom |
| Focal Length Min | 50 mm | 28 mm |
| Focal Length Max | 50 mm | 300 mm |
| Elements | 8 | 20 |
| Groups | 7 | 13 |
| Aspherical Elements | 0 | 3★ |
| ED Elements | 0 | 2★ |
| Coating | smc | fluorine coating |
| Aperture | ||
| Max Aperture | f/32 | f/4 |
| Min Aperture | f/2.8 | 4-7.1 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 8 | 9★ |
| Build | ||
| Mount | Pentax K | Sony E |
| Format | full-frame | full-frame |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.26 kg★ | 0.59 kg |
| Filter Thread | 49 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Autofocus | VXD linear motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 150 mm★ | 190 mm |
| Max Magnification | 1:1 | 1:3.8 |
优缺点
Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
- Strong macro (90th percentile)90th %ile
- Strong build (79th percentile)
- Below average aperture (5th percentile)5th %ile
- Below average bokeh (5th percentile)5th %ile
- Below average social proof (10th percentile)10th %ile
- Below average versatility (34th percentile)
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD
- Strong af (98th percentile)98th %ile
- Strong versatility (98th percentile)98th %ile
- Strong optical (97th percentile)97th %ile
- Strong user sentiment (91st percentile)91st %ile
价格
Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm0.086每美元得分
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD0.122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 6 of 21 specs.
