Colour filter

(photog) a thin layer of coloured gelatine, glass, etc, that transmits light of certain colours or wavelengths but considerably reduces the transmission of others


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  • Colour guard

    noun 1. a military guard in a parade, ceremony, etc, that carries and escorts the flag or regimental colours

  • Colouring

    [kuhl-er] /ˈkʌl ər/ noun, adjective, verb (used with or without object), Chiefly British. 1. . [kuhl-er] /ˈkʌl ər/ noun 1. the quality of an object or substance with respect to light reflected by the object, usually determined visually by measurement of hue, saturation, and brightness of the reflected light; saturation or chroma; hue. 2. the […]

  • Colour index

    noun 1. (astronomy) the difference between the apparent magnitude of a star measured in one standard waveband and in a longer standard waveband, indicating its colour and temperature 2. (geology) the sum of the dark or coloured minerals of a rock, expressed as a percentage of the total minerals 3. (chem, physics) a systematic arrangement […]

  • Colourist

    /ˈkʌlərɪst/ noun 1. a person who uses colour, esp an artist 2. a person who colours photographs, esp black-and-white ones

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