Pentax HD PENTAX-FA 50mm f/1.4 50mm
Pentax
49 综合评分
vs
Sigma Contemporary 10-18mm f/2.8 DC DN
Sigma
93 综合评分
买家怎么说
Pentax HD PENTAX-FA 50mm f/1.4 50mm
88 满分 100 置信度中 28 条评价
HD FA 50mm f/1.4 镜头因其卓越的锐度、美丽的色彩还原和柔和的散景而广受赞誉。用户欣赏其快速安静的自动对焦、坚固的做工以及与胶片和数码宾得机身的兼容性。有人提到在旧相机上需要更新固件以及偶尔的后焦问题，但总体而言，它被认为是一流的定焦镜头。
优点
- 卓越锐度
- 美丽色彩还原
- 柔和散景
- 快速安静自动对焦
- 坚固做工
缺点
- 旧相机需要固件更新
- 偶尔后焦问题
- 最大光圈时轻微洋红色偏
- 比其他镜头重
- 价格可能高于宾得直销
Image quality 12
Autofocus performance 5
Build quality 6
Firmware compatibility 4
Bokeh 4
Value for money 3
Sigma Contemporary 10-18mm f/2.8 DC DN
88 满分 100 置信度中 21 条评价
Sigma 10-18mm f/2.8 DC DN Contemporary 镜头因其紧凑轻巧的设计和锐利的图像质量而备受好评，非常适合 APS-C 相机上的旅行和房地产摄影。用户欣赏其快速 f/2.8 光圈带来的低光性能和令人愉悦的背景虚化，但一些人指出该镜头缺乏内置防抖功能，并且在某些相机系统上需要在后期处理中纠正畸变和暗角。
优点
- 紧凑轻巧的设计
- 整个画面图像锐利
- 快速恒定的 f/2.8 光圈
- 非常适合旅行和风景
- 良好的低光性能
缺点
- 没有内置防抖功能
- 畸变和暗角需要后期处理纠正
- 某些版本缺少光圈环
- 没有用于固件更新的 USB 底座
- Canon R7 不支持机内焦点堆叠
Build quality 6
Sharpness 5
Low light performance 4
Image stabilization 3
Autofocus speed 3
Portability 6
评分
Travel
Street
Macro
Portrait
Professional
Budget
Landscape
Video Cinema
Wildlife Sports
规格
| Pentax HD PENTAX-FA 50mm f/1.4 50mm | Sigma Contemporary 10-18mm f/2.8 DC DN | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 50 mm | 10 mm |
| Focal Length Max | 50 mm | 18 mm |
| Elements | 7 | 13 |
| Groups | 6 | 10 |
| Aspherical Elements | 1 | 1 |
| ED Elements | 1 | 4★ |
| Coating | Multilayer HD Coating | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/22 | f/2.8 |
| Min Aperture | f/1.4 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 8★ | 7 |
| Build | ||
| Mount | Pentax K | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.91 kg | 0.26 kg★ |
| Filter Thread | 49 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Autofocus | Autofocus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 450 mm | 117 mm★ |
| Max Magnification | 1:6.67 | 1:4 |
优缺点
Pentax HD PENTAX-FA 50mm f/1.4 50mm
- Strong social proof (86th percentile)86th %ile
- Strong user sentiment (81st percentile)81st %ile
- Below average bokeh (19th percentile)19th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Sigma Contemporary 10-18mm f/2.8 DC DN
- Strong social proof (94th percentile)94th %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (88th percentile)88th %ile
- Strong build (87th percentile)87th %ile
- Below average stabilization (34th percentile)
价格
结论
胜出: Sigma Contemporary 10-18mm f/2.8 DC DN
Scores 93 overall, wins 9 of 9 usage categories and 3 of 21 specs.
