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The word digital has been derived from the
Latin term ‘digitus’- meaning finger. The word digital was formerly used
for the act of counting on the finger. Digitus also means counting
discreetly, or quietly. Presently, the term digital technology is used
to define a system that makes uses of discreet values like electronic
voltages. Discrete values are mainly non - numerical symbols, which
represent numbers. Letters and icons used for transmission display,
storage, input and processing come under this category. These are
different from the analog system, which depicts a perennial value
spectrum.
Digital technology has revolutionized the world of photography in recent
years. A digital camera is a modern electronic device, which is used to
take and store photographs by using digital technology. It is
interesting to see how digital cameras work. A digital camera is often
defined, as an electronic gadget, which is used to encode an image. It
stores photographs in the form of digital data. The digital images,
which are encoded by this kind of a camera, can also be stored to make
copies at a later point of time. Digital data can be understood as a
bank of still images, which are captured and stored by the camera.
Electronic cameras capture and store digital data instead of traditional
photographic films. Previously cameras came in two forms – normal and
video. Traditional cameras used photographic films for imaging and video
cameras and recorded images to magnetic tapes in an analog format. The
new models of digital cameras are more versatile, in terms of
functionality. Modern technology and advancements have further enabled
digital cameras, to combine video and sound recording facilities with
photography.
Sir Eugene F. Lally discovered digital photography, while working in Let
Propulsion Laboratory. He documented his findings in a report, which
described how to produce photographs through digital technology, with
the use of a mosaic photo sensor. The invention of digital camera has
revolutionized the field of photography by eliminating the tedious
procedure of loading films and print development. The thrill of instant
gratification in seeing and showing pictures immediately after clicking
them far exceeds the pleasure of reel photography. Digital technology
also offers a variety of choice in terms of features and usability to
the ordinary user of cheap digital cameras. More and more people are now
able to take up photography as a profession, because of the user
friendliness of digital cameras.
The most basic digital cameras are perfectly suitable for taking family
photographs, on normal outings. A child can also take good photographs
with a digital camera. Professional digital cameras come with multiple
choices and endless features, to suit the needs, of various trades.
Multi functionality is an integral characteristic of modern digital
cameras. A dynamic electronic devise, it is far outselling its 35mm film
counterpart in the western market. This is not only due to consumerism,
but also, because of the advantages of digital technology. Technological
development has further diminished the cost and since often at a
discount, digital cameras are presently a good investment.
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