the plastic ring around the lens, and discard it. Unscrew the lens, and set it
aside (this will be made into the lens cap). Cover the small semicircular slot next to the lens with a piece of electrical tape, to prevent light leaks.
that attach the bellows to the front of the camera. Then, remove the screw on
the front of the camera that attaches the lens assembly to the frame. Then it
can be swung out to allow access to the back; Remove all the screws on the back of the lens assembly, then pry off the thin metal plate on the top of the lens assembly.
to see what is needed).
from a soda can). Make 4 small squares (about 1/2 by 3/4 inch) In the center of each piece, pierce a small hole of varying sizes. I made 3 with holes, and one with a tiny slit. To pierce the holes, use a thumbtack, nail, etc., and I used a utility knife to cut the slit. Sand off the burr from the back of the pinholes, and blacken one side with paint or a Sharpie. Superglue the pieces of metal to the dial, centering the pinholes in each of 4 holes. Write a small number at the bottom of each sheet of metal, to differentiate each pinhole. Keep in mind that, when reassembled, the number that's visible will refer to the pinhole on the opposite end of the dial.
Replace the plastic spring, then replace the metal arm that holds them in place
(replace the screw and the tiny metal clip; place it on the top of the small
metal rod and push straight down).
assembly, and replace the screws. Attach the back of the lens assembly and those screws, then the screw attaching this to the frame. Collpase the bellows, then open the back of the camera and replace the 4 screws to attach the bellows. Superglue the metal plate to the front of the camera.
the lens, making sure to cover it entirely. Screw it back into place.
To take a picture, set the dial to the desired pinhole, set the camera in
place, and remove the lenscap for the desired amount of time. This will vary
considerably, depending on the size of the pinhole and the light conditions of
the subject. In bright sun, an exposure will be around 10 to 20 seconds; indoors, it can be several minutes to 45 minutes or so). Replace the lenscap and remove the film, allowing it to develop.