Glossary; White Balance - Toshiba PDR-M500 Instruction Manual

Glossary

AF/AE
AF (auto-focus) ... A function for automatically focusing your camera.
AE ... A function for automatically setting your camera's exposure.
AF/AE lock ... Locking of the focus and exposure settings.
AVI file format
A standard movie file format on Windows
DCF (Design rule for Camera File System)
A file system standard defined by the JEITA (Japan Electronics and Information Tech-
nology Industries Association) that is required for exchanging data between digital still
cameras or a digital still camera and a printer. This standard defines the hierarchy and
file names used when storing image files on SD cards or other recording medium.
DPOF (Digital Print Order Format)
A standard for directly writing print information to the SD card. Files in this format can be
printed easily by printers or photo print service bureaus that support this format.
Exif File Format (Exchangeable Image File Format)
A color still image format for digital still cameras approved by the JEITA (Japan Elec-
tronics and Information Technology Industries Association). JPEG-compliant, this for-
mat is compatible with TIFF and JPEG and can be used in image processing software
for most personal computers.
Exposure Compensation
When the screen contains an extremely bright or dark object, the camera automati-
cally adjusts the brightness, resulting in the subject being reproduced darker or lighter.
Exposure compensation adjusts for this.
Formatting
Transforming the contents of the SD card to a recordable state. (This is sometimes
called "initialization".)
JPEG
A file format used for compressing and saving color images. The compression ratio
can be selected, but the higher the compression ratio, the worse image quality becomes.
This format is widely used in the paint software for PCs and on the Internet.
NTSC (National Television System Committee)
Method of television transmission in use in Japan and North America
PAL (Phase Alternate Line)
Method of television transmission in use in the United Kingdom, Germany and other
western European countries
Red-Eye Effect
The phenomenon where people's eyes sometimes appear red in the picture when you
use a flash to photograph them in low-light conditions. This is caused by the light of the
flash reflecting off the inside of the eye.

White Balance

When the brightness of the light changes, the human eye adapts so that a white object
still looks white. On the other hand, devices such as digital still cameras cannot see a
white subject as white until adjusting the balance to suit the color of the ambient light
around the subject. This adjustment process is referred to as matching the white balance.
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