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.