Entanya (Shinjuku-ku, Tokyo) has started selling camera covers that can be used with the Raspberry Pi Camera V2 and V3 camera modules for the Raspberry Pi.
The cover can be used to cover the surface of the camera module, protecting and blinding the camera and reducing reflections when used with a dome cover in sky cameras and other applications.
Reduction of reflection on the dome when used with a dome with a sky camera
