The focal length of the lens. A 4.8mm lens on a small webcam sensor provides a standard wide-angle view, typical for personal desktop video conferencing.
In the menu described above, uncheck Show compatible hardware . Scroll to Microsoft under the manufacturer list. web camera f 20 f4 8mm8 driver
For most, Windows 10/11 and Linux will use the generic usbvideo.sys driver. The focal length of the lens