1) Cinematography technique
Found on
https://www.crosswordclues.com/clue/bipack
In cinematography, bipacking, or a bipack, is the process of loading two reels of film into a camera, so that they both pass through the camera gate together. It was used both for in-camera effects (effects that are nowadays mainly achieved via optical printing) and as an early subtractive colour process. == Use as a colour process == Eastman, Agf...
Found on
http://en.wikipedia.org/wiki/Bipack
two separate films, each having an emulsion layer sensitive to a different color, held together with their emulsion layers facing for simultaneous exposure through the back of one.
Found on
https://www.infoplease.com/dictionary/bipack
No exact match found.
