The Best Brands of Digital Cameras

A digital camera is an electronic device that is used for taking videos or smooth

photographs or both digitally by recording images through an electronic image sensor. It is also called digicam or camera for short. We can record sound from many compact digital still cameras. We can also record photos and videos from these cameras. Now a day, most of the cameras are digital.

Digital cameras have advanced functions and they can do things that a film camera cannot. For example they can display images on a screen at once after they are being recorded. They can store a number of images on a single small memory device. They can record videos with sound and images can be deleted to free storage space. Some digital cameras can also crop pictures and perform other elementary image can be edited on these cameras. The work of the optical system is same as it is in film cameras, generally it uses a lens with a variable diaphragm and focalizes light onto an image pickup device. The diaphragm and shutter accept the correct amount of light to the imager. It performs the same function in film but the image pickup device is not chemical but it is electronic.

Digital cameras are integrated into many devices ordering from PDAs and mobile phones or camera phones to vehicles. Other astronomical devices and the Hubble Space Telescope are actually specialized digital cameras.

Digital cameras are of different kinds. They are made in a broad range of prices, sizes and specialties. Most of the digital cameras are camera phones which are being functioned as a mobile application through the cell phone menu. Most of the professional photographers use larger, more expensive digital single-lens reflex cameras (DSLR) batter results. Specialized cameras that include multispectral imaging equipment and astrographs continue to attend the scientific, military, medical and other particular functions for which digital photography was devised.

Compact digital cameras are also called point-and-shoot cameras as they are designed to be small, moveable and particularly suitable for occasional and snapshot use. The subcompacts digital cameras generally have thickness less than 20 mm and they are described as "ultra-compacts". Most of the cameras, apart from water-resistant models, comprise a retractile lens assembly allowing a thin camera to have averagely long focal length. Thus they fully exploit an image sensor bigger than that on a camera phone and a mechanized lens cap to cover the lens when pulled back.

Compact cameras are designed so that they can use easily giving advanced boasts and picture quality for simplicity. Images can be stored using loss compression (JPEG). The flash is built-in in most of cameras which has low power that is enough only for close subjects. Live is almost always used to frame the photo. Motion picture capability is confined in most of cameras. Compacts usually have large capacity and zoom lenses but the zoom range is normally less than for bridge and DSLR cameras. In general a contrast focuses the lens that detects autofocus system using the image data from the live preview feed off the main imager. Typically, these cameras integrate a nearly-silent leaf shutter into their lenses.

The Best Brands of Digital Cameras

By: Vierge Group

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