Gi0sss_y
Image sensor
The physical part of a digital camera that contains a photosite for
each pixel in the image, £ach photosite records the brightness of
the light that stnkes it during an exposure, Common sensor types
are QCD (Charge coupled Device) and CMOS (Complementary
Metal Oxide Semiconductor),
ISO sensitivity
Fhe sensKivity of the camera to light, based on the equivalent film
speed used in a film camera, At higher ISO sensitivity settings,
the camera uses a higher shutter speed, which can reduce blur
caused by carnera shake and low light, However, images with
high sensitivity are more susceptible to noise.
JPEG (Joint Photographic Experts Group)
A Iossy method of compression for digital images, JPEG images
are compressed to reduce their overall file size with minimal
deterioration of the image resdution,
LCD (Liquid Crystal Display)
A visual display commonly used in consumer electronics. This
display needs a separate backlight, such as CCFL or LED, to
reproduce colors.
Macro
This feature allows you to capture close tip photos of very small
objects. When using the macro feature, the camera car/maintain
a sharp focus on small objects at a near life size ratio (1:1).
Metering
The metering refers to the way in which the camera measures the
quantity of light to set the exposure.
MJPEG (Motion JPEG)
A video format which is compressed as a JPEG image.
Noise
Misinterpreted pixels in a digital image that may appear as
misplaced or random, bright pixels, Noise usually occurs when
photos are shot with a high sensitivity or when a sensitivity is
automatically set in a dark place.
OIS (Optical Image Stabilization)
This feature compensates in real time for shaking and vibrating
while shootir/g, There is no image degradation compared to
Digital Image Stabilization feature.
Appendixes 155
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