Most black plastics become transparent fairly quickly in the near-IR, it's something the dye designers aim for since it reduces the heat load into the material and makes it last longer.
Doing this with a regular (IR filter removed) BW camera and a polythene garbage bag is a standard science-fair demo.
As you get further into the infrared it becomes annoying. lots of things you think of as black, like black anodize and black electrical tape are transparent - so you get reflections and light leaks from things you would never think of.
Doing this with a regular (IR filter removed) BW camera and a polythene garbage bag is a standard science-fair demo.
As you get further into the infrared it becomes annoying. lots of things you think of as black, like black anodize and black electrical tape are transparent - so you get reflections and light leaks from things you would never think of.