TERMIUM Plus®

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Filter results by subject field Alphabetical list of terms

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Alphabetical list of terms

Record 1 1999-02-23

English

Subject field(s)
  • Photography
  • Types of Documentation (Library Science)
  • Cinematography
DEF

A layer on the back of a film base that counteracts curling and halation, i.e. unwanted light reflection.

CONT

A backing layer on the rear of the film base counteracts curling. Usually it contains also a nearly opaque dye to suppress light reflection on the rear support surface. Such reflection (halation) reduces definition by causing halolike effects around very bright image points.

Key term(s)
  • pelloid

French

Domaine(s)
  • Photographie
  • Documentation (Bibliothéconomie)
  • Cinématographie
DEF

Couche à l'arrière du support de film d'une pellicule photographique qui empêche la pellicule de rouler tout en agissant comme couche anti-halo, c'est-à-dire anti-réfléchissante.

OBS

Ne pas confondre «couche dorsale» et «sous-couche». La couche dorsale respecte le schéma suivant : émulsion-support-dorsale, alors que la sous-couche occupe la position intermédiaire du schéma émulsion-sous-couche-support. Dorsale et sous-couche ne diffèrent en fait que par l'emplacement, car elles remplissent exactement le même rôle antiréfléchissant ou antihalo.

Spanish

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