We tested three different pinhole sizes: 0.1 mm, 3 mm, and 5 mm. We found that 0.1 mm produced the sharpest photos, so we took additional photos using that pinhole size. As the pinhole size increased, the photos became increasingly blurry, as more light is let into the pinhole camera, producing a blurry image when different light rays hitting the same object enter the camera.
We used an old shoebox and covered all of the faces inside the box (except for the face where the image would be projected onto) with black paper, stuck together by duct tape. To avoid other light leakage, we also duct taped the box completely shut. We cut two holes: one for the camera, and one for the pinhole. We draped the camera with a dark-colored jacket to avoid light leakage through that hole. For the pinhole, we taped different sheets of black paper with different sized pinholes over the hole in the box.
