ABSTRACT

With these cameras, the film is replaced as the light-sensitive part

of the photographic process with an electronic sensor or, more

accurately, a grid of sensors (see Figure 7.4). Instead of the light in

a scene being recorded by silver halide grains, it is captured with

small electronic sensors. Each of the individual sensors provides

a small portion of the full description of the scene that makes up

the digital file. After photographing the file is stored on a memory

card held within the camera. For more details on how sensors

work, see page 44.