Digital Camera Computer Technology 3200 By: Brittany O’Brien A Filmless Camera Instead of film, a digital camera uses a sensor that converts light into electrical charges.
Computer Technology 3200
By: Brittany O’Brien
Resolution is the amount of detail a camera
can capture when a picture is taken.
The more pixels the camera has, the more
detail it can capture and the larger the picture
can be without becoming blurry.
A digital camera has to control the amount of
light that reaches the center.
Two components a digital camera uses to do
this is the aperture and shutter speed.
camera. It is automatic is most digital
cameras. However, it can be adjusted for more
control over the final image.
Shutter Speed: The amount of time that light
can pass through the aperture. The light sensor resets
automatically so the digital camera has a digital
In addition to controlling the amount of light,
the camera has to adjust the lenses to control
how the light is focused on the sensor. Most
digital cameras do this automatically.
Digital cameras one of four types of lenses:
Fixed-focus, fixed zoom lenses: This type of
lens comes on a disposable camera. They are
very limited, but inexpensive and great for
“wide” and “telephoto” options and automatic focus. These
lenses are very similar to a lens you would find on a video
Digital zoom lenses: With this lens the cameras takes pixels
from the center of the image sensor and averages the pixels to
make a full-size image.
Replaceable lens systems: Similar to a 35mm camera, some
digital cameras can also use 35mm lenses.
Many of today’s camera have
fixed or removable flash
These flash memory devices
Include SmartMedia cards,
CompactFlash cards, and