
"The Camera Obscura (the white tower) in Edinburgh is in essence a giant pinhole camera, which visitors can stand inside and see live images of the city outside."
"The pinhole lens (pictured here) is made from a piece of aluminum foil, pierced with an insulin needle and mounted behind a larger hole pre-drilled in a micro four thirds body cap. The pinole photograph above was taken using this lens on an Olympus EM5, ISO 200, 1/3 sec exposure"