Sigma Art 17-40mm f/1.8 DC
Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm
买家怎么说
Sigma Art 17-40mm f/1.8 DC
适马17-40mm f/1.8 DC DN Art镜头因其出色的画质、恒定大光圈和紧凑的内变焦设计而广受赞誉。用户强调其锐度、轻巧的机身以及在佳能R7和富士等APS-C画幅无反相机上出色的自动对焦性能。虽然有一些关于特定相机兼容性以及防尘防滴、光圈环等功能的疑问,但总体评价极为正面。
优点
- 出色的画质
- 恒定f/1.8大光圈
- 紧凑的内变焦设计
- 轻巧的机身
- 锐利明亮的照片
缺点
- 未提及防尘防滴
- 部分卡口无手动光圈环
- 与全画幅相机的兼容性问题
- 对部分买家来说价格较高
Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm
佳能RF-S 3.9mm f/3.5 STM双鱼眼镜头收到褒贬不一的评价。一位已验证用户报告了一个严重的自动对焦错误,需要重置相机才能修复,并且与佳能VR Utility不兼容。另一位已验证用户认为它是R5系统的一个价格实惠、轻便且带自动对焦的替代品。第三位未验证用户称赞其用于VR视频,称其为婚礼摄像的10/10购买。
优点
- R5设置的经济实惠替代品
- 轻量化设计
- 自动对焦功能
- 非常适合VR视频
- 适合婚礼摄像
缺点
- 频繁丢失自动对焦,需要重置相机
- 与佳能VR Utility不兼容
- 兼容性有限(仅确认R7)
- 没有旋入式ND滤镜选项
- 仅对左镜头主体自动对焦
评分
规格
| Sigma Art 17-40mm f/1.8 DC | Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm | |
|---|---|---|
| Optics | ||
| Type | zoom | fisheye |
| Focal Length Min | 17 mm | 4 mm |
| Focal Length Max | 40 mm | 4 mm |
| Elements | 17 | 11 |
| Groups | 11 | 8 |
| Aspherical Elements | 4★ | — |
| ED Elements | 4★ | 2 |
| Coating | Super Multi-Layer Coating | Air Sphere Coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/16 |
| Min Aperture | f/1.8 | f/3.5 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 11★ | 7 |
| Build | ||
| Mount | Fujifilm X | Canon RF |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.54 kg | 0.29 kg★ |
| Filter Thread | 67 mm | 31 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | STM★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm | 201 mm★ |
| Max Magnification | 1:4.8 | 1:33.33 |
优缺点
Sigma Art 17-40mm f/1.8 DC
- Strong user sentiment (98th percentile)98th %ile
- Strong optical (97th percentile)97th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong aperture (95th percentile)95th %ile
Canon RF-S 3.9mm f/3.5 STM Dual Fisheye 4mm
- Strong af (85th percentile)85th %ile
- Strong macro (81st percentile)81st %ile
- Strong build (76th percentile)
- Below average user sentiment (2nd percentile)2nd %ile
- Below average social proof (26th percentile)
- Below average bokeh (30th percentile)
- Below average versatility (34th percentile)
价格
结论
Scores 97 overall, wins 9 of 9 usage categories and 5 of 21 specs.