Entertainment / Photography Glossary

Curvature Of Field: Lens aberration causing a curved plane of focus.

Curvilinear Distortion: Combination of barrel distortion and pincushion distortion.

Cut Film: Negative film available in flat sheets. The most common sizes are 4x5, and 8x10 inches.

Cyan: Blue-green subtractive primary color which absorbs red and transmits blue-green.

Cyanotype: Contact printing process producing a blue image on a white background.

Daguerreotype: First practical and commercial photographic process, introduced by louis daguerre in 1839. The sensitive material comprised silver iodide, deposited on a polished silver plated copper base. . . . View Full Definition

Darkcloth: Cloth made of dark material placed over the photographers head and the camera back to facilitate the viewing of images on the ground glass screen of sheet film cameras.

Darkfield: Method of illumination used in photomicography that will show a specimen against a dark or black background.

Darkroom: Light tight room used for processing and printing. It usually incorporates safe lighting suitable for the materials in use.

Darkslide: Slide-in plastic sheet used on sheet film cameras over the front of the film holder to protect the emulsion from light.

Daylight Color Film: Color film intended for use with daylight or a light source of similar temperature. The film is color balanced to 5400 k.

Daylight Enlarger: Early type of enlarger using light from a hole in a window to provide illumination of the negative.

Daylight Tank: Light tight container for film processing.

Dedicated Flash: Flash gun designed to integrate automatically into a cameras exposure reading and shutter circuitry.

Definition: Subjective term for the clarity of a negative or print.

Delayed Action: Operation of the shutter some time after the release is depressed. Most shutters have a delayed action timer built in.

Dense: Describes a negative or an area of a negative in which a large amount of silver has been deposited.

Densitometer: Instrument for measuring the density of silver deposits on a developed image by transmitted or reflected light.

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