Sigma EX DG 8mm f/3.5 EX DG Circular Fisheye 8mm
Sigma
44 综合评分
vs
Canon L RF 70-200mm f/2.8 L IS USM
Canon
64 综合评分
买家怎么说
Sigma EX DG 8mm f/3.5 EX DG Circular Fisheye 8mm
82 满分 100 置信度中 18 条评价
适马8mm f/3.5 EX DG圆形鱼眼镜头因其锐度、色彩还原和独特的圆形鱼眼效果而备受喜爱。用户欣赏它简化手持全景摄影的能力，尽管有些人注意到暗角处的色差和噪点。与各种尼康机身的兼容性总体良好，但入门级数码单反不支持自动对焦。
优点
- 图像清晰锐利
- 独特的圆形鱼眼效果
- 简化手持全景摄影
- 色彩还原良好
- 兼容Z相机FTZ转接环
缺点
- 图像周围出现色差（光晕）
- 暗角处有噪点
- 入门级尼康数码单反不支持自动对焦
- 不是真正的全画幅镜头（EX而非FX）
- 部分机身需要手动对焦
Image quality 4
Fisheye effect 4
Panorama photography 3
Chromatic aberration 2
Autofocus compatibility 4
Build quality 2
Canon L RF 70-200mm f/2.8 L IS USM
78 满分 100 置信度高 459 条评价
佳能EF 70-200mm f/2.8L USM镜头因其卓越的锐度、快速安静的自动对焦和坚固的做工而广受赞誉。许多用户认为它是运动、人像和弱光摄影的主力镜头，尽管缺少图像稳定功能对一些人来说是一个明显的缺点。相当多的评论强调了镜头的重量以及可能出现的对焦不一致问题，尤其是在拍摄移动物体时。关于佳能对旧型号的支持和三脚架环设计的担忧也出现在负面反馈中。
优点
- 卓越的锐度和图像质量
- 快速安静的自动对焦（USM）
- 非常适合弱光摄影
- 适用于运动和肖像的多功能镜头
- 坚固的做工
缺点
- 没有图像稳定功能
- 又重又大
- 三脚架环设计问题
- 对移动物体的自动对焦不一致
- 佳能不再支持维修
Image quality 35
Autofocus performance 28
Build quality 22
Weight and size 18
Image stabilization 15
Value for money 12
评分
Landscape
Wildlife Sports
Video Cinema
Budget
Travel
Professional
Macro
Street
Portrait
规格
| Sigma EX DG 8mm f/3.5 EX DG Circular Fisheye 8mm | Canon L RF 70-200mm f/2.8 L IS USM | |
|---|---|---|
| Optics | ||
| Type | fisheye | zoom |
| Focal Length Min | 8 mm | 70 mm |
| Focal Length Max | 8 mm | 200 mm |
| Elements | 11 | 17 |
| Groups | 6 | 13 |
| Aspherical Elements | — | 2★ |
| ED Elements | 1 | 5★ |
| Coating | Super Multi-Layer Coating | Air Sphere Coating |
| Aperture | ||
| Max Aperture | f/22 | f/32 |
| Min Aperture | f/3.5 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 6 | 9★ |
| Build | ||
| Mount | Nikon F | Canon EF |
| Format | full-frame | full-frame |
| Weather Sealed | — | ✓★ |
| Weight | 0.40 kg★ | 1.07 kg |
| Filter Thread | — | 77 mm |
| AF & Stabilization | ||
| AF Type | Autofocus (with Nikon Cameras That Have an Autofocus Motor) | USM★ |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 5 stops★ |
| Focus | ||
| Min Focus Distance | 135 mm★ | 700 mm |
| Max Magnification | 1:4.6★ | 0.3x |
优缺点
Sigma EX DG 8mm f/3.5 EX DG Circular Fisheye 8mm
- Strong macro (88th percentile)88th %ile
- Strong social proof (71st percentile)
- Below average bokeh (6th percentile)6th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Canon L RF 70-200mm f/2.8 L IS USM
- Strong stabilization (96th percentile)96th %ile
- Strong optical (96th percentile)96th %ile
- Strong social proof (94th percentile)94th %ile
- Strong af (93rd percentile)93rd %ile
- Below average aperture (5th percentile)5th %ile
- Below average bokeh (8th percentile)8th %ile
- Below average user sentiment (32nd percentile)
- Below average macro (33rd percentile)
结论
胜出: Canon L RF 70-200mm f/2.8 L IS USM
Scores 64 overall, wins 8 of 9 usage categories and 7 of 22 specs.