Pentax DA* 21750 60-250mm
Pentax
64 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* 21750 60-250mm
86 满分 100 置信度低 8 条评价
宾得DA* 60-250mm f/4镜头因其在整个变焦范围内的出色锐度和防风雨密封的坚固构造而备受推崇。用户称赞其多功能性、安静的自动对焦和良好的性价比，尽管有些人注意到重量、偶尔的对焦或SDM可靠性问题以及镜头筒伸出的倾向。总体而言，它被认为是宾得APS-C相机的一款出色的远摄变焦镜头。
优点
- 整个变焦范围内出色的锐度
- 防风雨密封结构
- 安静快速自动对焦 (SDM)
- 多功能 60-250mm 焦距
- 性价比不错
缺点
- 重量较重（超过1公斤）
- 无变焦锁（镜筒可能伸出）
- SDM 可靠性问题
- 特定焦距偶尔画质偏软
- 镜头盖无系绳
Sharpness 7
Build quality 8
Autofocus performance 6
Weight 4
Weather sealing 5
Value for money 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* 21750 60-250mm | Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 60 mm | 28 mm |
| Focal Length Max | 250 mm | 300 mm |
| Elements | — | 20 |
| Groups | — | 13 |
| Aspherical Elements | — | 3★ |
| ED Elements | 1 | 2★ |
| Coating | Super Protect (SP) coating, smc | fluorine coating |
| Aperture | ||
| Max Aperture | f/4 | f/4 |
| Min Aperture | f/4 | 4-7.1 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Pentax KAF2 | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 1.04 kg | 0.59 kg★ |
| Filter Thread | — | 67 mm |
| AF & Stabilization | ||
| AF Type | SDM | VXD linear motor★ |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 250 mm | 190 mm★ |
| Max Magnification | — | 1:2.8★ |
优缺点
Pentax DA* 21750 60-250mm
- Strong versatility (90th percentile)90th %ile
- Strong stabilization (79th percentile)
- Strong macro (75th percentile)
- Strong user sentiment (75th percentile)
- Below average build (13th percentile)13th %ile
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* 21750 60-250mm
No current pricing available
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
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 8 of 21 specs.
