Appendixes
119
Glossary
DCF (Design rule for Camera File system)
A specification to define a file format and file system for digital
cameras created by the Japan Electronics and Information
Technology Industries Association (JEITA).
Depth of field
The distance between the nearest and farthest points that can
be acceptably focused in a photograph. Depth of field varies with
lens aperture, focal length, and distance from the camera to the
subject. Selecting a smaller aperture, for example, will increase
the depth of field and blur the background of a composition.
Digital zoom
A feature that artificially increases the amount of zoom available
with a zoom lens (Optical zoom). When using the Digital zoom,
the image quality will deteriorate as the magnification increases.
DPOF (Digital Print Order Format)
A format for writing printing information, such as selected images
and number of prints, on a memory card. DPOF-compatible
printers, sometimes available at photo shops, can read the
information from the card for convenient printing.
AEB (Auto Exposure Bracket)
This feature automatically captures several images at different
exposures to help you capture a properly-exposed image.
AF (Auto Focus)
A system that automatically focuses the camera lens on the
subject. Your camera uses the contrast to focus automatically.
Aperture
The aperture controls the amount of light that reaches the
camera’s sensor.
Camera shake (Blur)
If the camera is moved while the shutter is open, the entire image
may appear blurred. This occurs more often when the shutter
speed is slow. Prevent camera shake by raising the sensitivity,
using the flash, or using a faster shutter speed. Alternately, use a
tripod, the DIS or OIS function to stabilize the camera.
Composition
Composition in photography means arranging objects in a photo.
Usually, abiding by the rule of thirds leads to a good composition.
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