Cine EI: Slog 3 and LUTs
Slog video images must be “normalized”. They appear low contrast on
more linear displays (like TVs and computers) as they perceive
brightness in a logarithmic way, the same manner as our eyes.
The quickest normalization method is by applying a LUT, a look-up
table: a file with a .cube extension that will apply color and contrast
transformations to the file. LUTs can be applied in camera, in an
external monitor or in postproduction software.
Usually, but not necessarily, you use the same LUT to monitor in
production that you use to correct the image in postproduction.
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