Kenko announced a new 400mm f/8 mirror lens for Micro Four Thirds, Sony NEX, Nikon F, Canon EF , Sony Alpha and Pentax K mounts:
| Focal length | 400mm |
|---|---|
| Brightness | F8 (fixed) |
| Lens Construction | Six Group 2 |
| Angle of view | 6 ° 8 ' |
| Greatest dimension | 74mm |
| Body | Machined aluminum |
| Filter Size | 67mm |
| Minimum focusing distance | 1.15m |
| The maximum magnification close-up | 1: 2.5 |
| Focus Mode | Transfer to the front lens manual focus mode |
| Aperture blades | Without |
| Hood | Exclusive hood KF-M400HOOD-BK |
| Mount the | Using T-mount |
The official release will happen on February 3rd, 2012.
