Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
Tamron
100 综合评分
vs
Pentax DA 21790 55mm
Pentax
41 综合评分
买家怎么说
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
Pentax DA 21790 55mm
85 满分 100 置信度低 8 条评价
Pentax DA* 55mm f/1.4 SDM 镜头因其锐利的成像、美丽的虚化效果和出色的弱光性能而备受赞誉。它非常适合人像和活动摄影，尽管在较旧的Pentax机身上可能存在对焦问题。总体而言，这是一款性价比很高的高品质镜头。
优点
- 锐利的图像质量
- 美丽的平滑虚化效果
- 出色的弱光性能
- 适合人像和活动摄影
- 防尘防滴设计
缺点
- 在较旧的Pentax机身上可能存在对焦问题
- 尺寸略大
- 不如Carl Zeiss镜头锐利
Image quality 5
Bokeh 2
Low light performance 2
Portrait photography 4
Build quality 2
Value for money 3
评分
Macro
Budget
Landscape
Portrait
Professional
Wildlife Sports
Travel
Street
Video Cinema
规格
| Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm | Pentax DA 21790 55mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 28 mm | 55 mm |
| Focal Length Max | 300 mm | 55 mm |
| Elements | 20 | 9 |
| Groups | 13 | 8 |
| Aspherical Elements | 3★ | 0 |
| ED Elements | 2★ | 1 |
| Coating | fluorine coating | Aero Bright coating, Super Protect (SP) coating |
| Aperture | ||
| Max Aperture | f/4 | f/22 |
| Min Aperture | 4-7.1 | f/1.4 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Sony E | Pentax K |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.59 kg | 0.38 kg★ |
| Filter Thread | 67 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | VXD linear motor★ | SDM |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 450 mm |
| Max Magnification | 1:2.8★ | 0.3x |
优缺点
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
Pentax DA 21790 55mm
- Strong build (79th percentile)
- Strong user sentiment (66th percentile)
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
价格
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 7 of 21 specs.
