Pentax DA 21987 35mm
Pentax
43 综合评分
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
Tamron
100 综合评分
买家怎么说
Pentax DA 21987 35mm
82 满分 100 置信度高 47 条评价
这款宾得35mm f/2.4镜头因其锐度、色彩还原和性价比而广受赞誉。用户一致认为它物超所值，许多人称其为超值之选和出色的全能镜头。主要缺点是塑料机身和卡口、缺少遮光罩以及手动对焦受限，但这些通常被视为价格上的合理妥协。总体而言，强烈推荐给寻求经济型定焦镜头的宾得数码单反用户。
优点
- 图像锐利
- 性价比极高
- 小巧轻便
- 色彩还原好
- 自动对焦快速
缺点
- 塑料机身和卡口
- 不附带遮光罩
- 手动对焦受限
- 无光圈环
- 不防风雨
Image quality 25
Value for money 20
Build quality 15
Portability 10
Autofocus performance 8
Lens hood 5
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
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
Macro
Budget
Landscape
Portrait
Professional
Wildlife Sports
Travel
Street
Video Cinema
规格
| Pentax DA 21987 35mm | Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 35 mm | 28 mm |
| Focal Length Max | 35 mm | 300 mm |
| Elements | 6 | 20 |
| Groups | 5 | 13 |
| Aspherical Elements | 1 | 3★ |
| ED Elements | — | 2★ |
| Coating | PENTAX Super Protect (SP) coating | fluorine coating |
| Aperture | ||
| Max Aperture | f/22 | f/4 |
| Min Aperture | f/2.4 | 4-7.1 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 6 | 9★ |
| Build | ||
| Mount | Pentax K | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.13 kg★ | 0.59 kg |
| Filter Thread | 49 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Autofocus | VXD linear motor★ |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 300 mm | 190 mm★ |
| Max Magnification | 0.17x | 1:2.8★ |
优缺点
Pentax DA 21987 35mm
- Strong build (93rd percentile)93rd %ile
- Strong social proof (81st percentile)81st %ile
- Below average bokeh (6th percentile)6th %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 300mm
- Strong versatility (98th percentile)98th %ile
- Strong af (98th percentile)98th %ile
- Strong optical (96th percentile)96th %ile
- Strong user sentiment (92nd percentile)92nd %ile
价格
Pentax DA 21987 35mm0.309每美元得分
vs
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm0.157每美元得分
Pentax DA 21987 35mm 性价比高 2.0 倍
结论
胜出: Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
Scores 100 overall, wins 9 of 9 usage categories and 9 of 21 specs.
