Glossary
Appendixes
123
MJPEG (Motion JPEG)
A video format which is compressed as a JPEG image.
OIS (Optical Image Stabilization)
This feature compensates in real-time for shaking and vibrating while shooting.
There is no image degradation compared to Digital Image Stabilization feature.
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.
Optical zoom
This is a general zoom which can enlarge images with a lens and does not
deteriorate quality of images.
Quality
An expression of the rate of compression used in a digital image. Higher quality
images have a lower rate of compression, which usually results in a larger le size.
ISO sensitivity
The sensitivity of the camera to light, based on the equivalent lm speed used in
a lm 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,
images with high sensitivity are more susceptible to noise.
JPEG (Joint Photographic Experts Group)
A lossy method of compression for digital images. JPEG images are compressed to
reduce their overall le size with minimal deterioration of the image resolution.
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-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).
Metering
The metering refers to the way in which the camera measures the quantity of light
to set the exposure.