The introduction of digital cameras marked a landmark in the development of photography. Digital cameras are very different from traditional film-based cameras. Film cameras based on trust in the simple method of exposure of a chemical known as photosensitive film camera to a scene that creates a printed image also known as negative.
Digital cameras are far more advanced and the use of CCD (Charge-Coupled Device). CCD is a electronic device that creates an electrical charge when photons strike against a photosensitive material. This phenomenon is known as the photoelectric effect.
Digital cameras are equipped with chips, these chips can be CCD, CMOS (Complementary Metal Oxide Semiconductor), Foveon and others. These chips replace films used in older cameras. Digital cameras also have an intelligent digital sensor has pixels set through it. To give an idea of the resolving power of these sensors, a sensor of 3702×2704 pixels with more than 10 million pixel camera gives a grade of 10 'megapixels'.
Megapixels can be considered as the number of points that each image is composed of. The power of megapixel digital camera is directly proportional to the sharpness of images. Now, when the rays of light from a light source strikes against these mega pixels, which is excited leaving a trail behind. After the image of this form is passing through color filter that converts the image of the light signals into signals electrical analog. The analog signal is finally run through an analog to digital converter that produces the final digital image.
The images produced is compressed and stored in memory chips. Digital cameras have many advantages including;
1. Provide the user to review the images immediately after taking them.
2. Easy transfer to computer and other devices.
3. Great memory to ensure you never run out of space.
4. Portability and good ergonomics.
Because of this, it seems that digital cameras are here to stay.
About the Author:
Cooper is a budding blogger and online writer. Read his Reviews of Sony BDPS500 and Reviews of Griffin Evolve.
Article Source: ArticlesBase.com – How Does My Digital Camera Work?
Let’s Play Jaws Unleashed – Random Violence
|
|
Walkstool Comfort 55cm/22in. Folding Seat for Outdoors
$79.95 THE STOOL THAT WALKS. You and your normal chair do not get on. You are continually on the move and it permanently stands still. Think for a minute; you like to play golf, hunt, fish and you would also like to sit down for a while. You go to concerts, wait in ticket queues, go for a long walk, go camping and would also like to sit down for a while. You travel, or feel the effects of an injury that... |
|
|
House-Works Thermometer Hide-A-Key
$2.99 72-48149 Features: -Working thermometer. -Concealed and secure key compartment with space for two keys. -Includes retail packaging. -Fully functional thermometer in addition to being the perfect place to hide you spare keys. -Product will ensure that you never lock yourself out again. -Ease your concerns of home invaders discovering your spare key. -Dimensions: 1'' H x 1'' W x 6.25'' D.... |
|
|
Webril Handi-pads 4x4 Bag
$9.98 Lintless, soft, absorbent, strong 100 percent cotton pads. Excellent for small plates and presses, stripping, cleaning and camera work.... |
|
|
Successful Camera Work for Video (Films for the Humanities & Sciences) - VHS
This program looks at the main functions of the camcorder - focus, aperture, shutter speed, depth of field, and zoom - as well as aspects of framing and image composition, including techniques such as pull focus and the trombone shot. The relationship between subject and camera movement is examined in a section that also introduces the notion of simple tracking and jib movements. (Part of the Vide... |
|
|
Animation : Basic Camera Techniques [Vhs Tape]
VHS Art Education... |
|
|
Carver- UNRATED
$4.91 Studio: Peace Arch Home Entertain Release Date: 03/04/2008 Run time: 100 minutes Rating: Ur... |
|
|
Hollywood Camera Work: (Vol.1)The Master Course In High-End Blocking and Staging (Volume 1, DVD)
... |
|
|
Otter Box Blackberry 8350i Defender Cell Phone Covers
The OtterBox for BlackBerry Curve 8350i (with Push to Talk) Defender Case is a fully interactive case. Case enables complete usability of the trackball, keyboard, camera and Push to Talk features. All sound is transmitted through the case by way of acoustical vents. All surfaces of the BlackBerry are fully covered, yet all ports are accessible via convenient Silicone plugs. Note: This case works O... |
|
|
Energizer A23 Battery, 12 Volt - 2 Pack
$1.93 BATTERY, SILVER OXIDE 12V WATCH/ELEC... |
|
|
Energizer Compact Charger With 4 AA NiMH Rechargeable Batteries
$15.19 One Compact Digital Camera Charger to charge rechargeable AA and AAA batteries. Included is 2AA and 2 AAA NiMH Rechargeable batteries. Ideal for camera and travel bags.... |