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Silver base to digital photography

...... The next step was to create a hermetic box, with a photosensitive paper hidden inside, protected from light. A glass slip would allow the light to penetrate inside the camera, enough time to print the image on the film. Silver halides were useful in photography because they are developable, which means they can be amplified with gain in sensitivity[5]
In 1884, George Eastman introduced the first film roll and in 1888 the first camera, Kodak, loaded with film, made photography accessible to the masses. After that the accent was placed on the camera technology, the lenses, the exposure variations and mechanical film printing process and other innovations that helped make photography more accurate. The development of the camera into a smaller size, easier to handle, that turned it into a mobile object, allowed the artist to experiment with different angles and distances, capturing subjective elements for the photos and the art of portrait became more popular than ever. As the necessary exposure time became shorter photography concentrated on moving subjects, such as the passing crowds of the big cities. It became a tool that illustrated the modern world......