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    A pinhole camera is a box with a very small hole in the middle. Any box made of light material will do. The box should be light-proof. So that light can’t enter except through the small hole, you can cover the box frame using black tape. But you need to put on the opposite of the hole inside the box first.

   After that, you can make a very small hole by using a pin going through a piece of aluminum foil and then taping it over the hole in the box. A small piece of cardboard taped on one side over the pinhole can be used as a shutter. When everything is ready, pick any object or scenery, put the pinhole camera in front of it, open the shutter, and briefly expose your film to take a picture.

    The secret behind how a pinhole camera works lies in the small hole in the middle of the box because the smaller your pinhole is, the sharper your picture would look. Rays of light enter through the small pinhole and are projected to a certain area on the film. Furthermore, if the pinhole is very small, finer and thinner beams of light would be captured. However, thin streams of light tend to bend when they make contact with the film. Even if the lines of the image look sharp, the overall picture can be a little blurry.

    Now focus on how the pinhole camera actually works, for instance, you want to use your pinhole camera to take a picture of a flower. The flower bounces off a certain amount of light so that it can be seen. The very small hole in your pinhole camera captures all the streams of light that the flower emits and projects it upside-down into the film.

To sum up, a pinhole camera works by simply capturing light and projecting it to specific areas on the film. This simple concept is also used in digital cameras which use high-powered lenses.

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