How was the camera obscura invented?

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The camera obscura was believed to have been first discovered in China about three to four centuries BC. It consisted of a hole in a wall, which is known as a pin hole camera. It wasn't exactly invented but more of a discovery.

It is possible to actually make one in your own house. It needs a bit of experiment.
  • If you have a small room with a window, get a piece of black card which is dense enough to stop light going through and is big enough to cover the window.
  • Punch a hole in the middle about 3 to 5mm across. It should be a clean hole without any ragged edge.
  • Get a sheet of white paper about A3 size and stand the paper upright opposite the hole. Now the distance needed is dependent on the size of the hole. This is where a bit of trial and error comes in.
  • You will need to sit for some time in the dark until your eyes adjust and pick a bright sunny day. The sun should shine on the scene outside and not on the window.
  • You can experiment with smaller and larger holes and vary the distance of the viewing paper.
  • Once you have a sharp image, measure the distance from hole to viewing paper and divide the hole size into the distance. This will give you the focal length. If you make a larger hole, say one inch in diameter you can cover that with a removable piece with different size holes until it looks right.
  • Finally you will have to stand on your head because the image will be upside down.
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Who invented the camera obscura?

The "camera obscura" ( dark chamber ) was a technique for projecting an image into a darkened space or container, using a pinhole and later a lens. The technique was known to

When was the camera obscura invented?

The first mentions of the camera obscura appear in writings byChinese philosopher Mozi, dated between 470 and 390 BCE. Aristotlealso mentioned camera obscura in his writings.

How does camera obscura work?

The camera obscure means "dark chamber" in Latin. Camera obscuracan work with just a box with a hole in one side. Light from onepart of an object will pass through the hole an

What is a camera obscura?

a darkened boxlike device in which images of external objects, received through an aperture, as with a convex lens, are exhibited in their natural colors on a surface arranged

What was the camera obscura used for?

Camera obscura is used to project an image onto another surface.This can be used to show pictures to an audience, or to project animage you can trace for drawing.

What artists have used the camera obscura?

The camera obscura was invented in the 16th century. It is believed that a great number of artists have used it, but only seldom do we know that an artist has talked or writte

When did the camera obscura invented?

The camera obscura has been known for many years. The principal was understood by Aristotle (384-322BC) and in China (470/390BC) The camera has been developed in some little f

Why did artists use a camera obscura?

The camera obscura was a very early form of a device now called an"opaque projector". By looking at an image of a 3-dimensionalobject projected onto a sheet of paper, an artis