Those aren’t film, they’re tape. Film is what’s in the camera or shown through a projector and are visible to the naked eye. VHS, Betamax, and video2000 are magnetic tape formats that aren’t viewable with the naked eye. Regardless, “on film” is still a universally acceptable term for “on the recorded video” no matter the format because terms stick around in industries
I’ve ordered the ring because I have the watch, but I don’t like wearing the watch at home. Sometimes I put it on at home, but instinctively I find myself taking it off within a few hours. I especially don’t like wearing the watch while I sleep. However I have no problem wearing a ring all day. The form factor itself is more advantageous for me, because it’s the difference between wearing it or not. When I leave the house, I have no problem putting my watch on and keeping it on. Same way I don’t have a problem putting on shoes and keeping them on. But like the watch, I don’t like wearing shoes at home.