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Home      Digital Photography

 
Did you know that the Presidential Portrait of Barack Obama was the first official Presidential Portrait to be taken with a digital camera?
 
January 13, 2009
(Author: Pete Souza, The Obama-Biden Transition Project)

With the acceptable image quality and the other advantages of digital photography, more and more professional photographers have begun capturing their images with digital cameras.
 
Digital photography has also long been adopted by almost all amateur point-and-shoot photographers, who take advantage of its convenience when sending images by e-mail, placing them on the World Wide Web galleries, or displaying them in digital picture frames.

Digital photography uses digital technology to make images of subjects while traditional photography uses photographic film to create images which are made visible by photographic chemical processing.
 
By contrast, digital photographs can be displayed, printed, stored, manipulated, transmitted, and archived using digital and computer techniques, without chemical processing.
 
 
 

The advantages of digital photography over traditional film photography include:

  • Instant review of pictures. You do not have to wait for the film to be developed. If there's a problem with a picture, you can immediately correct the problem and take another picture
  • Minimal on-going costs for you to capture hundreds of photographs for digital uses, such as computer storage and e-mailing, but not printing
  • Permanent storage on digital media such as the hard disk of a computer or DVD is considerably cheaper than film
  • Photos can be easily copied from one digital medium to another without any degradation
  • Pictures do not need to be scanned before viewing them on a computer
  • Photos can be printed using a computer and consumer-grade printer
  • Metadata can be embedded within the image file, such as the time and date of the photograph, model of the camera, shutter speed, flash use, and other similar items, to aid in the reviewing and sorting of photographs. Film cameras have limited ability to handle metadata, though many film cameras can "imprint" a date over a picture by exposing the film to an internal LED array (or other device) which displays the date.
  • Ability to capture and store hundreds of photographs on the same media device within the digital camera; by contrast, a film camera would require regular changing of film (typically after every 24 or 36 shots)
  • Many digital cameras now include an AV-out connector (and cable) to allow the reviewing of photographs to an audience using a television
  • Anti-shake functionality (increasingly common in inexpensive cameras) allow taking sharper hand-held pictures where previously a tripod was required
  • Ability to change ISO speed settings more conveniently in the middle of shooting, for example when the weather changes from bright sunlight to cloudy. In film photography, film must be unloaded and new film with desired ISO speed loaded.
  • Smaller sensor format, compared to 35mm film frame, allows for smaller lenses, wider zoom ranges, and greater depth of field.
  • Ability to use the same device to capture video as well as still images.
  • Ability to convert the same photo from color to sepia to black & white.
 
 
 
 
 
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