The basic way a pinhole camera works is that light goes through a pinhole (a very small hole in the front of the light-proof container) and hits the photographic paper at the back of the container, which reacts when exposed to light and creates the picture.
So, to apply this to an oatmeal box, get your cylindrical oatmeal can and find the center using a ruler. Cut a square (using a razor/exacto knife/etc- it helps to mark it first with a marker) about 1/2" by 1/2" in the center. Then take some Elmer's glue and glue the seam on the inside of the plastic lid, and around the seams on the bottom of the oatmeal box (this seals all the places where light could leak in). Then, find an aluminum can and cut off the top and bottom, and then cut it lengthwise so it's a flat rectangle. After marking a 2x3" rectangle, cut it out, and round off the corners so you won't cut yourself.
Now, spraypaint the can & lid black (this should be done outside) to make it completely lightproof. Now, take your aluminum rectangle and poke the pinhole in it with a pin (a sewing needle should work fine). Try to only push the tip in, just enough to make a hole- the smaller the hole, the more in focus your photos will be. Then sand both sides of the aluminum around the hole to make it smooth.
Next, take electrical/Duct Tape and place it on the two long sides of the aluminum. Then put some crazy glue (or just very strong glue) on the area around the pinhole - but NOT covering it!! - and attach the aluminum to the inside of the can, so the pinhole is peeking out of the square hole. This is your pinhole! (We use aluminum for the pinhole because the walls of the oatmeal can are too thick)
You can also make a shutter for it, but covering it with anything thick enough that will keep out all the light when you are not exposing the photo paper will work. Now just put photo paper in your camera and start experimenting!
pinholes were the first cameras ever, so i presume they are older
The pinhole camera is simple and requires no complex lens-based optical systems to work effectively as an image maker. In its simplest form it is no more than a light-tight box with a pinhole on one end and a place for a sheet of light sensitive material on the other.
The most common type of pinhole photography is done with the aid of a shoe box. The film (use real black and white film as it is less sensitive to light and light leaks because we are talking about a shoe box here) is taped to one end of a shoe box and a small pinhole is carefully punched into the center of the opposite end of the shoe box. The box lid should be placed on tightly and sealed in place. When you handle the film, you must try to have total darkness. Practice all aspects of putting your shoe box "Camera" together in the light first. Place your finger over the pin hole before bringing into the light. Then the box is placed, usually outside on a sunny day. Point the pinhole end of the box toward something that you are interested in taking a picture of. Your subject has to be something that is stationary. The light coming through the pinhole will expose your film for you. Research the subject to help determine pinhole size and approximate exposure times to take some guesswork out your project.
The only similarity between them is that both are capable of taking a recognizable picture.
A pinhole camera is the most simple form of Photography and requires practically no knowledge of photography to build a pinhole camera and capture an image using it. The basic principle behind a pinhole camera is the light enters through the pinhole at the front of the container (eg. a shoebox) travels through the light proof box and hits the photographic paper at the back of the box. The paper reacts to the light and where the light falls it is exposed (dark) and where there is no light the paper remains light. As you will be able to see after the image has been developed; the image produced will be a negative of the actual image. The image will also be upside-down due to the way in which the light enters the box. Then all that remains is to develop the photographic paper as you would normally. You will not see anything until you start to develop the paper. The paper will still appear white. Remember: - Light only travels in straight lines, - The box will need to be light proof apart from the pinhole at the front, - The pinhole cannot be too small, it can quite easily be too large, - Only place the paper in the box and remove it from the box in a darkroom. - Anything can be turned into a pinhole camera! Even rooms... Suggestions: - An old shoebox works well, as does a film canister. - Use black and white paper, it is easier to develop and far simpler to start with. Maybe experiment with colour afterwards. - You will need to use trial and error to find the correct exposure time. eg, if the image appears too dark decrease the exposure time, if it appears too light increase the exposure time. Have fun, pinhole camera's are great to make and a good introduction into photography. Alex Apps **************** - the aperture should be about 1/100th of the distance to the image plane visit http://en.wikipedia.org/wiki/Pinhole_camera for a fascinating story about the world's largest pinhole camera Micron
A focusing screen in a pinhole camera? Uhh...no. A pinhole camera is a box with a very small hole in one end of it and a piece of film in the other end. The screens in reflex cameras and in view cameras are translucent to give the image something to form on. The light will pass through a transparent screen without forming an image, and it won't go through an opaque screen at all.
A simple camera can be made simply with a light-tight box and a film or sensor, anything to 'capture' the light coming through an opening (lens, pinhole, aperture, etc.) Although this setup is rather rudimentary, it is a camera.
It partly depends on what you mean by camera; the first camera obscura (a room sized pinhole camera) was invented by Ibn al-Haytham in the 10th century. The first photograph was taken in 1826 by Joseph Nicéphore Niépce using a box camera.
He wanted to make oatmeal. His face is on the oatmeat box. He invented it.
The first photograph was in 1825, we would have to consider that a camera.But the camera itself, just a box with a pinhole, was described already 300-400 BC. The 2000 years between those two was the time it took to find a chemical method to make the image permanent.See also related link.
It literally takes long-exposure photos through a pinhole that projects an inverted image into a darkened box.
A box of oatmeal primarily contains elements such as carbon, hydrogen, and oxygen, which make up the organic compounds in the oats. It may also contain minerals like magnesium, phosphorus, and iron, which are essential for human health.