Thanks to http://fotografia101.com and Sylviarte I was able to construct this Dippold DYI pinhole camera. A pinhole camera is a simple camera that doesn’t have a lens and contains a small aperture in a light-proof box with a very small hole in one side. It has a similar behavior with the human eye in bright light. It projects the light from the scene through the hole in an inverted way to the film. It is manually operated. I use the template provided by Dippold in his flicker account. After the construction of the camera I went to the Old San Juan area to shoot some pictures. These are some of the results.

Camera construction
Small black cut-paper model parts laid out on a glossy red wooden table.A small homemade box made from a Honey Bunches of Oats cereal carton, wrapped with string on a red wooden table.
Picture resutls
A curved brick wall shot at an angle with heavy teal, pink, and orange film color casts and light leaks.Blurry film photo of a colonial plaza with cobblestone street, large tree, white building, and red-brick building.