A digital camera is an electronic device used to photograph and store images in place of using the former photographic film used in the more conventional cameras.
With additions to the technology of digital cameras, many of them are now multifunctional, including the ability to record sound and videos. In the modern Western market they currently outsell the 35 mm cameras.
Digital cameras can be found in several categories:
* Video cameras: These are designed to record moving images. Those used in movie and television production usually have many image sensors, usually one per color, which enhances the resolution. The professional video cameras don’t usually have a built-in microphone of VCR.
* Camcorders: These are the video camera of the amateur. They usually have a built-in microphone and a viewing screen to watch the video during recording and playback. Many of the new camcorders can now take still photographs, but even the low-end LPD takes better still photographs than the best of the camcorders. Some of the newer camcorders record directly to flash memory and transfer the data over USB or FireWire.
* Webcams: These are attached to computers for video conferences and viewing of those you talk to while on an IM or video phone call. They have full-motion abilities, while some have zoom abilities and microphones included.
* Movies: Some digital cameras have a movie capability that allows taking movies.
* Live-Preview Digital Cameras (LPD): These are cameras that use live preview on an electronic screen to allow previewing a photograph before you take it. Most digital cameras fall into this category.
Most digital cameras are also known as digicams. Characterized by ease of operation and focusing, the design allows for limited video capability.
The zoom ability of these cameras is quite a bit smaller than on the predecessor of film cameras. With and extended dept of field, objects that are further away can easily be in focus. This accounts for the increased ease of use.
Digital Cameras Are Versatile
There are many uses for a digital camera. The usual means of storage on a digital camera is flash memory; however, it is also possible to find cameras with floppy disks and CD-RWs, which are less common.
The digital camera is used to store the images, or your photographs, until they can later be transferred to your computer.
In addition to taking pictures, digital cameras can also have the capability of recording sound and video. Some have the technology to be used as webcams, which hook up to your computer and allow you to view people as you talk to them through various instant messenger programs.
The quality of webcams ranges from display pictures, which are close to the quality of a television picture, to very low quality, which are grainy and tend to jump a lot.
Several digital cameras now include PictBridge, which is a means of printing pictures directly from a digital camera to a printer, an industry standard from CIPA (Camera & Imaging Products Association) for direct printing. These standards are set up to maintain a high quality of technology between competitors without endangering the benefits of competition.
PictBridge eliminates the need to connect your camera to your computer. Some digital cameras have the ability to connect to your television set, and camcorders can also take still photographs, storing them on flash memory cards or videotape.
Digital cameras in most cases can be directly connected to your computer, allowing for storage of pictures and for use as a webcam. They usually include a USB port and a memory card slot.
While limited by storage capacity, many newer digital cameras can record movies, and some of the newer cameras can capture footage at the rate of 30 frames per second, with a display resolution similar to a television screen. They can also connect to and use your computer to store video on the hard disk or DVD recorder of your computer.