blf Kits of Lens 6mm, 8mm, 12mm Board Lens Black for Security CCTV Surveillance Camera

will this fit in micro fpv camera body? How wide are the threads that screw into the camera?

What is the aperture/F-stop for these lenses?

Are these lenses suitable for use with ir illuminators, or do thy filter-out the ir light?

Will this work on raspberry pi 4? I have the 5mp camera m12