announced a new 300mm lens for Micro Four Thirds. Here are the specs:
300mm: focal length (equivalent to 35mm version: equivalent to 600mm)
F/6.3: brightness
66mm: length of the lens
66mm: the maximum diameter
55mm: diameter filter
Less than 300g: Weight
manual focus
This fixed aperture, manual focus lenses revive catadioptric lens designs are very popular in the 1970s and '80s to produce smaller high-magnification telephoto lens.This fixed-aperture, manual focus lens revives the catadioptric lens design that was especially popular in the 1970s and '80s for producing small high-magnification telephoto lenses.