| A digital camera (or
digicam for short) is a camera that takes video or still photographs, or
both, digitally by recording images via an electronic image sensor.
Many compact digital still
cameras can record sound and moving video as well as still photographs.
In the Western market, digital cameras outsell their 35 mm film counterparts.
Digital cameras can do
things film cameras cannot: displaying images on a screen immediately after
they are recorded, storing thousands of images on a single small memory
device, recording video with sound, and deleting images to free storage
space.
Digital cameras are incorporated
into many devices ranging from PDAs and mobile phones (called camera phones)
to vehicles. The Hubble Space Telescope and other astronomical devices
are essentially specialised digital cameras. |
