Japanese manufacturer Tokina has announced a new 300mm f/6.3 mirror lens for Micro Four Thirds for the CP+ show in Japan. Certainly a polished offering, this is sure to take your photography to the next level. Read below for the exact specifications for the 300mm f/6.3.
300mm: focal length (equivalent to 600mm)
Lens length: 66mm
Filter size: 55mm
Weight: less than 300g
Distance encoder: Equipped with distance encoder, can communicate with the body (Exif, lens information, etc.)
Source: Photo Rumors