How Digital Cameras Work

A Digital camera is one that has the technology of making videos as well as capturing still pictures digitally

. The pictures are taken through the electronic image sensor. Digital cameras have very distinctive features that could not be found in other film cameras. Some of these may include the displaying of videos and pictures on the screen as soon as they are captured. Thousands of pictures could be stored on a very small memory card which has a wide storage capacity. You could always delete unsatisfactory or unnecessary photographs to clear memory space.

Besides this, some digital cameras also have the technology of recording full audio video and capturing still images at the same time while others also have the option to crop various pictures, add frames or other editing features. These type of cameras could sometimes have a built in GPS receiver that allows you to create multiple Geotagged photographs as well.

The optical system of digicams is identical to that of other film cameras. This includes the making use of a lens and a diaphragm to focus the light on an image sensitive device. The shutter and the diaphragm function in a way so as to allow a suitable amount of light to reach the imager. Although the basic idea is the same but unlike in the film cameras, the image sensitive device in digital cameras is electronic instead of being chemical. Apart from other camera phones, digicams may also include typical tripod screw.

There are a number of applications of digicams. The most common ones may include mobile phones, also known as camera phones, PDAs (personal digital assistant) or even vehicles. Digicams may also be modified to produce certain advanced astronomical devices or even Hubble Space Telescope.

There are different types of digital cameras available nowadays that vary in sizes, capabilities and also prices. The application that is used the most is the camera phone that is easily accessible from the mobile menu. In professional photography, technically more advanced technology of single lens reflex digital cameras is used for greater adaptability as well as better quality. These cameras are also slightly more expensive than the usual ones. Other types of cameras may include bridge digital cameras as well as compact digital cameras. Such cameras help to remove the difference between professional and amateur cameras. Features such as astrograph and multispectral imaging could also be found in these types of cameras.

Digital compact cameras are user friendly and therefore suitable for casual use. For this reason, they are sometimes known as point and shoot cameras. Besides this, Bridge cameras are slightly bigger in size than the compact cameras and include some advanced features that make them identical to DSLRs. Apart from this, single lens reflex cameras (DSLRs) are so called because they have a different viewing system. They also have a better performance than other cameras.

Although the digital cameras have not yet completely replaced the conventional film cameras but they have still gained a lot of popularity mainly due to their better quality and performance.

by: Kevin Wu

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