Pinhole Camera - Simple Concept, Small Camera, Sophisticated Images

Pinholes may be the simplest type of camera ever invented, and this for much longer. These radars are used for art, entertainment, science, and surveillance. You probably have one or know someone who is. But have you ever thought about the mechanism behind a pinhole camera?

Is not typical of the camera

The pinhole is not a normal camera, both in form and function. Insteadthe typical case of a pinhole camera using a light, matchbooks box - and make cereal boxes. And instead of conventional glass lenses, very, very small hole the size of that generated by a PIN.

But do not underestimate the closed session. The fact is that the results are impressive and sophisticated art. The images will be provided after the exposure is much better than her by a film camera. It is sweet, but freshat the same time, and the images of almost infinite depth of field.

A simple concept

This device operates on a simple principle, as simple optical pinhole. One side of the box is a small hole. The light from outside the box through the hole and form an image on one side of the camera.

To better understand the concept of imagination in a big black box. On one side of the room and a small hole outside the room of a friendholding a flashlight. Now, this friend of his lantern shines through the pinhole at different angles.

Imagine the wall opposite the hole. This is a small point created by the beam of a flashlight shining through the hole. When a friend moves the torch, the lowest point also moves around the wall.

Now imagine that this field with other countries and show that in your garden. On the wall opposite the hole will be reversed and the mirror image of the landscape. Each pointGarden and emits the light beam emitted from the point through the hole, so that the corresponding number of light on the opposite wall.

Each point is this landscape (transmission) of light reflected from the hole in the wall and, suddenly, has created a complete picture of the wall.

Beyond the scene, and the hole automatically lead to a longer process. It also means better results. The image is, of course,be low, because the hole is very low.

Small House

True pinhole camera is available in different sizes. But, anyway, is much smaller than the areas mentioned above. And instead of a bare wall opposite the hole, using a pinhole camera in a kind of movie. The film, which is leaning against the wall, brings to light or the image through the hole.

The camera creates a friendly representation of the center of the stage, wherePoint your camera. The exposure time is usually half a second to several hours, far longer than usual exposure of the cameras. This is because the small hole that allows only through a lot of light, but the result is in any case, that is worth the wait.

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