Pinhole photography is known as the most primitive forms of creating a photograph. Some refer to it as Camera Obscura. It can be traced as far back as 330 B.C. in the writings of Aristotle. The basic requirements for this method is a pinhole camera, light, light meter, and a substrate such as glass, paper or film, to name a few, which have light sensitive emulsions coated on one side for exposure.

That is the simple explanation of how pinhole photographs are made. Then you have the process of developing you photograph in a darkroom, washing it, then letting it dry. Lastly, depending on what substrate you used, it will be scanned into the digital environment or enlarged by using a photo enlarger in the darkroom.