How Photography Works
Photography is the art, science, and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.
In order to take a photograph, a photographer needs a camera, film, or other image sensor, and a light-tight container, such as a darkroom, to process the image. Camera, film, and image sensor work together to capture light and store it as an image.
When light strikes film or a digital image sensor, it exposes the sensor to light. This light exposure records an image in the form of a latent image, which is a negative image (in film) or a positive image (in digital cameras). In order to view the latent image, the film or image sensor must be processed, which involves either chemical development (in film) or digital processing (in digital cameras).
After the latent image is processed, a negative or positive image is produced, which can be printed on paper or other media.
