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:
|Lens Construction||Six Group 2|
|Angle of view||6 ° 8 '|
|Minimum focusing distance||1.15m|
|The maximum magnification close-up||1: 2.5|
|Focus Mode||Transfer to the front lens manual focus mode|
|Mount the||Using T-mount|
The official release will happen on February 3rd, 2012.