Why would you be using a camera? Is Hollywood inside you house lmfao. The vents are also easily reachable without a ladder, so you wouldn’t need a camera anyways? So why are you suggesting a camera?
This isn’t a thing in real life, never has, never will be. It’s a Hollywood trope…. Let’s see someone post a picture from their house, this isn’t a thing and people here are yanking your chain OP.