Kenko
Mirror Lens 400mm ƒ/8
Mirror Lens 400mm F8
Kenko Mirror Lens 400mm ƒ/8 is a 400mm prime lens for the Fujifilm X mount, equivalent to 600mm on full frame, with a maximum aperture of ƒ/8 and manual focus.
Optics
- Type
- Prime · Photo
- Specialty
- Mirror
- Focal length
- 400mm (600mm eq.)
- Angle of view
- ≈ 4°
- Aperture
- ƒ/8
- Blades
- 0
- Aperture ring
- —
- Construction
- 6 el. / 2 gr.
- Designed for
- Full frame
Focus
- Type
- Manual
- Minimum distance
- 1.15 m
- Magnification
- 0.40× (1:2.5)
Size and mount
- Diameter × length
- 74 × 112 mm
- Weight
- —
- Filter
- 67 mm front
- Mount
- Adapter included
Features
- Yes
- —
- No
- Internal focus
History
- Maker
- Kenko · JP
- Announced
- —
- Status
- Discontinued
- Replaced by
- Kenko Mirror Lens 400mm ƒ/8 N II
Original Japanese name ミラーレンズ400mm F8. T-mount fitted with the X mount at the factory. Released 2012-11-16. Length is the official mirrorless-version figure; the listed weight (495 g) is not given per mount, so it is omitted. No aperture blades (fixed f/8); front-extending manual focus. Machined aluminium body. No official photo of the X version found (the product shot shows the Nikon F version).