
Nikon filed patents (P2018-72638A, P201872640A) for a 20mm f/2 full-frame lens designed for a curved image sensor: Focal length: 20mm Aperture: 2.0 Image height: 21.1 mm Half angle of view: 53.6 Nikon filed a patent (P2018-67965A) for a stacked BSI image sensor with dual shutter mode: rolling for low-noise and global for less distortion.