1.0 Background
A
digital camera uses an electronic image sensor to create still photographs and
record video. The optical system of a digital camera works like a film camera,
in which a typical lens and diaphragm are used to adjust electronic image
sensor lighting.
Digital
cameras equip amateur and professional photographers with multiple automated
control functions. Advanced digital cameras facilitate manual control of most
functions. A digital camera is also known as a digicam.
2.0
Uses
LEARNING ACTIVITIES
As a curriculum tool,
digital cameras add a multimedia dimension to learning. Placing a digital
camera in the hands of a K-12 student or teacher unleashes creativity and opens
up new possibilities for all areas of the education spectrum. Beyond simply recording
events, digital images transform documents, presentations, and communications
into personalized, custom productions
3.0 Advantages digital camera
3.1 Planning Your Shot
Before digital photography, people were
limited to a maximum 36 photos per roll of film. Unless you had a Polaroid,
there was no way to see the photo immediately after taking it. Developing and
printing all the photos on the film was fairly expensive, so you had to take
care not to waste shots. The advantage of a digital camera is that you can
immediately see your images on-screen, and you don't have to develop a roll of
film. Every failed shot can be deleted on the spot, so you can take a whole
bunch of photos and then select the best ones. The disadvantage of this
technique, however, is that you tend to not focus on getting the perfect shot
as much, exercising quantity over quality when composing your image.
3.2 Number of Photos
As of 2013, camera memory cards come
with capacities of up to 64 gigabytes. This means one memory card can store
thousands of photos. This is in stark contrast with film photography, where you
were limited to 36 photos on a roll of film. When film got damaged, the
photographer would lose 36 photos. However, if your memory card gets corrupted
before you have had a chance to download the photos, you could potentially lose
thousands of images at once.
3.3 Editing
Digital photography allows you to edit
your images after uploading them to a computer. This allows for very creative
effects, and gives you the freedom to correct faults in photos that are, for
instance, underexposed. It is now possible to turn an image to grey scale
digitally or to remove elements from the background. The downside of this is
that, once again, people tend to be less critical about their photos because it
could be corrected through editing. Instead of getting the shot right from the
start, a lot of time is spent editing away mistakes. Photos are also often
over-edited, taking away from their natural beauty.
