Camera for photography

Photography stabilizes as an industrial process in the 20th century, articulating a camera or darkroom, as an image-forming device and a mode of recording the luminous image – a photosensitive surface, which can be photographic film, photographic paper or, in the case of photography digital, a CCD/CMOS digital sensor that transforms light into a map of electrical impulses, which will be stored as information on a digital storage card. In this process, the relationship between photography and its analogous processes becomes evident. For example, the photocopy or xerographic machine forms permanent images, but uses the transfer of static electrical charges instead of photographic film. This is where the term electrophotography comes from. In radiography, published by Man Ray in 1922, images are produced by the shadows of objects on photographic paper, without the use of a camera. And objects can be placed directly from the scanner to produce figures electronically.

Photographers control the camera by exposing the photosensitive material to light, which changes qualitatively and quantitatively according to the possibilities of each device. Controls are generally interrelated. For example, exposure varies according to the aperture (which determines the amount of light) multiplied by the shutter speed (which determines the exposure time), which varies the tone of the photo, the photographic depth of field and the degree of temporal cropping. of the photographed model. Different focal lengths of the lenses allow you to vary the shape of the depth of the image, as well as its angle.