Nikon has filed a new patent for a super-wide-angle lens in Japan. The new patent describes a new 1 Nikkor 7.5mm f/2.8 lens designed for mirrorless cameras with 1-inch type sensors.
From the patent document we can say the lens will offer 7.5mm focal length and f/2.8 bright aperture. The Nikon 1 series CX (1″) format have 2.7X crop factor that clearly means (7.5mm X 2.7) = 20mm (approx) of focal length.
See the patent details below.
Nikon Patent for 1 Nikkor 7.5mm f/2.8 Lens
Nikon 7.5mm F2.8 Focal length translated by Japanese
- Patent Publication No. 2015-152851
- Published 2015.8.24
- Filing date 2014.2.18
- Example 1
- Focal length f = 7.54025mm
- Fno. 2.85
- Angle of view 2ω 94.66
- Y 8.00
- TL 51.2997
- Air conversion BF 13.6095