I am verifying the answers generated by an automatic system to the following question: how was color introduced in film?
Suggested answer: With the present-day technology, there are two distinct processes: Eastman Color Negative 2 chemistry (camera negative stocks, duplicating interpositive and internegative stocks) and Eastman Color Positive 2 chemistry (positive prints for direct projection), usually abbreviated as ECN-2 and ECP-2.
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