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Fotocamere
Fotocamere

Fotocamere

Cameras have come a long way since their early days. Darkrooms were rooms with holes in the curtains, which projected an image of the outside world onto a wall. Thomas Wedgwood (1771-1805) and Sir Humphry Davy (1778-1829) conducted experiments with photosensitive paper. They found that the photosensitive paper turned black unless it was stored in a dark room. In 1827 Joseph Nicephore Niepce made the first photograph in the world. To capture the image, he had to leave the shutter open for about 8 hours. </ P>

Cameras were invented to capture rays of light. Light rays bounce off objects everywhere and hit different materials. The first camera consisted of a room with a hole in one wall and a photosensitive material at the bottom of the room. The material captured the light and the chemicals reacted with it to produce an image. This photo was then projected upside down on the opposite wall. During the early years of photography there were cameras like this.

The camera shutter button is usually located at the top right of the camera body. Pressing the button halfway will set the camera's focus and exposure settings and the camera will be ready for the next shot. This process is called pre-focusing. Before taking the picture, a camera will focus on the subject to get the best possible image. Typically, the camera has preset focus and aperture before taking the picture. However, some cameras require a separate AC charger to charge the battery.

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