Pin hole cameras.

In a pin hole camera, the pin hole is basically the lens. how pin hole cameras work is they capture the image, flip it upside down, and then use the light from the hole to expose the photographic paper inside the camera. pinhole cameras are really easy to create. you can make one out of a shoe box, a tin can, and you can even turn your digital camera into a pin hole camera by placing a bit of metal over the lens and making a tiny hole in the piece of metal. you can experiment with a pin hole camera a lot. changing the time of exposure can drastically change the image.  pin hole cameras also have an almost infinite depth of field because it has no lens to limit it. this creates a huge advantage on digital cameras.making a pinhole camera  is easy, all you have to do is find an opaque container, that will let no light in, then you make a very small incision (pin size)onto either the side of the lid of the container. after this you place the slip of photographic paper in the box opposite the side of the hole in the container. secure the slip of paper with some double sided sticky tape. make sure that when you place the slip of photographic paper in the container, you do it in either a dark room or in the pitch black.  after placing the paper in the container but before leaving the dark room or the pitch black, you must seal the lid of the container with tape, and then cover the hole that you made.after this you take your pin hole camera out to where you would like to take your photo. then you expose your paper by lifting off the tape for the selected amount of time e.g. 30 seconds then you cover the hole up after then you take the pin hole camera home, and develop it in the same process as a photo-gram. a pinhole camera works the same way as a camera lens, by flipping the image and reflecting it on to the slip of photographic paper.