43 years later I no longer use film. Even though my profession requires me to make many images with a camera, I will never use film again. Within the next five years film will be as much a part of the history of photography as typewriters are now a part of the history of document production. This article describes the unique aspects of digital photography and how this innovation has and will continue to affect the legal and business communities and our society. It is important to understand this difference in the legal and business environment.
Digital cameras work in every way like a film camera with one extraordinary exception.
Both types of cameras have a lens that brings light from the scene into focus. Both have an aperture, a hole that can be made larger or smaller to control the amount of light entering. Both have a shutter device that opens and closes the aperture for a set amount of time. Both have light meters that automatically set the shutter speed and the aperture opening. The CCD, measuring the size of a dime, is a silicon chip with a grid containing hundreds of thousands or millions of photosensitive diodes called photosites or photoelements or pixels.