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Appendix
Glossary
A (Aperture Priority) Mode
You set the aperture yourself and the camera automatically varies the shutter
speed so that the picture is taken with the correct exposure.
AE (Automatic Exposure)
The camera's built-in exposure meter automatically sets the exposure. The 3
AE modes available on this camera are P mode, in which the camera selects
both the aperture and shutter speed, A mode, in which the user selects the
aperture and the camera sets the shutter speed, and S mode, in which the
user selects the shutter speed and the camera sets the aperture.
In M mode, the user selects both the aperture and the shutter speed.
Aperture
The adjustable lens opening which controls the amount of light that enters the
camera. The larger the aperture, the shorter the depth of field and the fuzzier
the background. The smaller the aperture, the greater the depth of field and
the sharper the background. Aperture is measured in f/stops. Larger aperture
values indicate smaller apertures, and smaller aperture values indicate larger
apertures.
AUTO mode
Program AE mode (see “P (Program) Mode”). In addition, this mode features
automatic flash pop up when shooting in low-light conditions.
CCD (Charge-Coupled Device)
This converts light passing through the lens into electrical signals. On this
camera, light is picked up and converted into RGB signals to build a single
image.
Center weighted averaging metering
A light metering mode or technique that uses an average of the center and
periphery of the image area but is biased toward the information at the center
of the image area. This method is best used when the brightness of the center
and periphery of the image area does not vary greatly. See also digital ESP
metering and spot metering.
Color space
A model that describes colors using more than three coordinates. Color
spaces such as sRGB, Adobe RGB are occasionally used for encoding/
reproducing colors.