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ISO sensitivity
MJPEG (Motion
The sensitivity of the camera to light, based on the equivalent
film speed used in
JPEG)
A video format which is compressed as a JPEG image.
a film camera. At higher ISO sensitivity settings, the camera uses a higher shutter
speed, which can reduce blur caused by camera shake and low light. However,
Noise
images with high sensitivity are more susceptible to noise.
Misinterpreted
JPEG {Joint Photographic
bright pixels. Noise usually occurs when photos are shot with a high sensitivity or
when a sensitivity is automatically set in a dark place.
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 resolution.
Optical
pixels in a digital image that may appear as misplaced or random,
zoom
This is a general zoom which can enlarge images with a lens and does not degrade
LCD (Liquid Crystal Display)
the quality of images.
A visual display commonly used in consumer electronics.This display needs a
separate backlight, such as CCFL or LED,to reproduce colors.
Quality
An expression of the rate of compression
Macro
used in a digital image. Higher quality
images have a lower rate of compression, which usually results in a larger file size.
This feature allows you to capture close-up photos of very small objects. When
using the macro feature, the camera can maintain a sharp focus on small objects at
a near life-size ratio (1:1 ).
Resolution
The number of pixels present in a digital image. High resolution images contain
more pixels and typically show more detail than low resolution images.
Metering
The metering
refers to the way in which the camera measures the quantity
of light
to set the exposure.
Appendixes 147