Pinhole photography is making an image without a lens. A small needle sized hole replaces the lens. Light passes through the perforation in the foil; an image is formed in the film canister.



try using the round end of the canister
Pinhole cameras come in all sizes, yours will be small but some are large, very large! The image your camera will produce will be roughly a 2x2 square, a recent World’s record camera was created in an airplane hanger creating an image 28 x108 feet long. Cameras have been made of fruit, in a loaf of bread, in a persons mouth, but most commonly are made out of oatmeal or shoe boxes. Basically a pinhole camera is a box, with a tiny hole at one end and film or photographic paper at the other.




'SmileyCam' pinhole camera
Building your own camera can be a great learning experience. Making pictures with a camera you have made yourself out of simple materials is a way to understand photography at a very basic level. In fine art photography the pinhole camera is just an imaging device with its advantages and disadvantages. It has unique characteristics and surprising results. By trial, error, and using your imagination the camera has amazing potential.
Here are some images from other pinhole film canisters:

Animals


HISTORY BEFORE THE PINHOLE CAMERA
Camera = Latin for “room”
Obscura = Latin for “dark”
Obscura = Latin for “dark”
"Who would believe that so small a space could contain the image of
all the universe? O mighty process! What talent can avail to
penetrate a nature such as these? What tongue will it be that can
unfold so great a wonder? Verily, none! This it is that guides the
human discourse to the considering of divine things. Here the
figures, here the colors, here all the images of every part of the
universe are contracted to a point. O what a point is so marvelous!"
--Leonardo Da Vinci's comments on the "Camera Obscura" (Dark Room), or what we today call the pinhole camera.

How the Camera Obscura works:
How to make a Camera Obscura:

Other Camera Obscuras:
French inventor Joseph Nicéphore Niépce uses a camera obscura.
Note to self: remember Niepce, we'll get back to him.
Note to self: remember Niepce, we'll get back to him.


Camera Lucida
In the years before the announcement of the first photographic processes in 1839, artists who wished to make a quick record of a scene with the correct prospective used a Camera Lucida.The original design of the camera lucida was published by William Hyde Wollaston (1766-1828) in 1807

Pinhole Camera

The smaller the hole, the sharper the image, but the dimmer the projected image. Optimally, the size of the aperture should be 1/100 or less of the distance between it and the screen.
A pinhole camera's shutter is usually manually operated because of the lengthy exposure times, and consists of a flap of some light-proof material to cover and uncover the pinhole. Typical exposures range from 5 seconds to hours and sometimes days.