Filter
Top Products
ix
auto white balance (AWB)
With auto white balance, the camera attempts to determine the
color temperature of the light and automatically adjust for that
color temperature. Many people just leave the camera set to
auto white balance all the time.
Charge Coupled Device (CCD)
A type of silicon integrated circuit used to convert light into an
electronic signal.
compression
The process of encoding information using fewer bits cf. image
compression, sound fi le compression
Digital Print Order Format
(DPOF)
A standardized ASCII fi le created in a digital camera and stored
on removable media along with the image fi les that indicate how
many copies of which images should be printed. It also allows
index prints, cropping, and text overlays to be specifi ed.
digital still camera (DSC)
A camera incorporating an image sensor which outputs a digital
signal representing a still picture, or records a digital signal
representing a still picture on a removable medium, such as a
memory card or magnetic disk.
dynamic range cf. ISO DSC dynamic range, colour gamut, luminance ratio
Exif/JPEG
A compressed fi le format for digital cameras in which the images
are compressed using the baseline JPEG standard, described in
ISO 12234-2, and metadata and thumbnail images are stored
using TIFF tags within an application segment at the beginning
of the JPEG fi le.
exposure index
A numerical value that is inversely proportional to the exposure
provided to an image sensor to obtain an image. Images
obtained from a camera using a range of exposure index values
will normally provide a range of image quality levels.
ISO speed
A numerical value calculated from the exposure provided at the
focal plane of an electronic camera to produce specifi ed camera
output signal characteristics using the methods described in the
referenced standard. The ISO speed should correlate with the
highest exposure index value that provides peak image quality
for normal scenes.