此款镜头是针对无反全画幅相机系统开发的超广角镜头，焦点距离9mm，视场角135°，同时具备了高性能、低畸变、体积小巧轻便的特色和优势。
| Lens number | FFⅡ 9mm F5.6 W-Dreamer |
| Aperture | F5.6 |
| Viewing angle | 135° |
| Aperture blade | 5片 |
| Maximum magnification | 0.21倍 |
| Filter diameter | 无 |
| Weight | 约350g |
| Focal distance | 9mm |
| Minimum aperture | F22 |
| Lens structure | 10组14片 |
| Nearest photographic distance (object-image distance) | 12cm |
| Focus drive mode | 手动（MF） |
| Lens size (diameter/length) | 约φ62.4mm/66mm |
| bayonet | 徕卡M、尼康Z、索尼FE、L口 |
MTF
Optical Chart
