In a recent Tech Talk, Art Adams shares interesting facts about the new Color Science Reveal introduced with the ARRI 35. As a former cinematographer, he has a particularly hands-on perspective on the resulting images and color reproduction.
First, here&s a brief summary of what&s done differently in Reveal than in previous Color Science, and it&s quite a bit:
- Thanks to a new debayering algorithm, more details can be made out in the image
- the mathematical model has been completely reformulated to map hues and luminance values more correctly
- since values can be mapped more precisely than before, there is a new color space, which is even smaller
- furthermore there is the new log curve LogC4, because more dynamic range is available
- and unlike before only one curve for all exposure indexes
- also the display LUTs are new
Adams then demonstrates how these changes actually affect the real image using various test shots taken with the ARRI Mini LF. These allow a direct comparison when processed with the old Color Science on the one hand and the new Color Science on the other. You can clearly see, for example, how the brightness values differ - the goal was to get as close as possible to human perception with the mapping.
ARRI Tech Talk: REVEAL Color Science
The new Color Science also fixed some known color problems, such as the tendency toward bluish reds in some situations.
The approx. 23-minute video offers quite interesting background information for all those who occasionally get their hands on an ARRI.
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