Pinhole camera is about as basic as you can get when it comes to image making. All you need is a tin/box, a piece of foil and some darkroom paper. These long exposures are also known as solargraphy. They can be hours long to days and even months long. I started out using Altoid tins, holiday tins and eventually moved to making a boxed negative in a box pinhole camera. As if that weren't enough, I had the idea to build a 9 pinhole camera out of black film canisters and black foam board. I call her 9PIN.