All About Photography

The term camera comes from camera, which in Latin means ‘room’ or ‘camera’. The original camera obscura was a room whose only light source was a tiny hole in one wall. The light that penetrated it by projecting an image of the orifice in the exterior wall. Although the picture thus formed was inverted and blurred, the artists used this technique, long before film was invented to outline scenes projected by the camera. Over the centuries the camera obscura evolved and became a handy little box and the hole is installed an optical lens to get a more clear and defined.

300 B.C.
Aristotle uses the camera obscura to study solar eclipses.

XVII Century
Leonardo Da Vinci realizes that the images received in the interior of the room are of smaller size and invested, retaining their shape and colors.

XVIII Century
The light sensitivity of certain silver compounds, particularly nitrate and silver chloride, was known before the British scientists Thomas Wedgwood and Humphry Davy began experiments late eighteenth century to obtain photographic images. Succeeded in producing images of paintings, silhouettes of leaves and human profiles using paper coated with silver chloride. These photographs were not permanent because after exposed to light, the entire surface of the paper is blackened, which could never be able to get the set of images.