Digital SLR Camera Basics


daylight sync (fill flash)

The use of a flash in daylight to illuminate (“fill in”) shadows in backlit subjects or shaded areas, reducing the contrast between brightly-lit and shaded areas of the frame for a natural effect.

depth of field

The distance that appears to be in focus in front of and behind the point at which the lens is actually focused.


A mechanism that controls the size of the lens aperture. Diaphragms are usually composed of overlapping blades or leaves that open or close to control aperture.


An abbreviation of “Digital Print Order Format,” a format for storing the information on the images selected for printing and the number of copies to be printed; this information can be used to automate printing at a commercial print service or using a household printer.