My project is to detect a defined shape of retro-reflective tape (for FRC, if you know what that is). We need to detect IR, but having a wide angle lens would also be tremendously useful. Is there a way we could make the wide angle lens detect IR, or make the IR lens wider angle?
Yes, just buy the wide angle lens and remove the IR filter on the back of it. The IR filter is just glued on. An exacto knife and some force will remove it.