A one-light is a
timed
timed (time daemon) is an operating system program that maintains the system time in synchronization with time servers using the Time Synchronization Protocol (TSP) developed by Riccardo Gusella and Stefano Zatti. Gusella and Zatti had done e ...
workprint
A workprint is a rough version of a motion picture, used by the film editor(s) during the editing process. Such copies generally contain original recorded sound that will later be re-dubbed, stock footage as placeholders for missing shots or speci ...
made using a ''single'' setting of the three lights (red, green and blue) used to make a color film print. Since a fully timed print requires the presence of a skilled person called a color timer (US) or
film grader' (UK), a one-light print is more economical for printing
dailies (positive) from rushes (negative).
Cinematographers often require one-light workprints to better judge their film exposures.
Cinematography
Photographic techniques
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