Kenko announced a new 400mm f/8 mirror lens for various mounts

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
Mount the Using T-mount

The official release will happen on February 3rd, 2012.

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