TERMIUM Plus®

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TRI-PACK [1 record]

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Record 1 1981-08-12

English

Subject field(s)
  • Photography
OBS

These [photographic coatings] are superposed in a conventional tri-pack arrangement.

French

Domaine(s)
  • Photographie
OBS

Bipacks et tripacks. Le problème de la sélection pour les images dichromes est facilement obtenu par l'emploi de bipacks (...). Un bipack est constitué par deux films séparés, accolés, pendant l'exposition, par leur faces gélatinées (...). Le film frontal, orthochromatique, enregistre le bleu-vert; le film postérieur, panchromatique, enregistre le rouge orangé. (...) Les bipacks ont été utilisés en trichromie, simultanément avec un troisième film (pour le vert) dans les caméras à dédoublement d'image.

Spanish

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