That’s because in CDL math, the arithmetic of SOP-S are calculated in that precise sequence. You may be wondering why the ASC-CDL sequence is expressed as ‘S-O-P’, as opposed to ‘O-S-P’ to match the more commonly known ‘LGG’. However, each set of CDL controls behave very differently from one another! The parameters of a CDL replace the traditional Lift, Gamma, and Gain you’re probably used to manipulating.

A numerical read-out is conveniently shown on the right and updates in real-time. Notice the design choice to arrange the wheels to represent LGG grading controls. The ‘CDL’ Node as illustrated inside of Pomfort Silverstack LAB. In other words, it’s all about the perfect interchange of color modifications. CDL compliant hardware and software can create, modify, and reproduce consistent color results exported from any other supported platform. The strength of a CDL- based workflow is its software-agnostic nature. Their definitions of LGG can vary in sensitivity and response. Just like how an EDL communicates basic edit data, a CDL carries a subset of color-correction data.Īlthough all color-correction systems offer their own basic grading controls, ‘Lift,’ ‘Gain’, and ‘Gamma’ are implemented differently from vendor to vendor. The specification was first released around mid-2007 and is now widely adopted among several software and hardware manufacturers. The ASC-CDL, more commonly expressed and known simply as the CDL, was created through a joint operation between the American Society of Cinematographers’ Technology Committee, production / post production vendors, and color scientists to standardize the exchange of primary color adjustments. But before we get there, we need to understand what precisely a CDL is designed to do. And at the end of this article we look at why DPs typically combine a LUT with a CDL to achieve their final looks. What precisely did he mean, being ‘CDL compliant’? Why does is it important for dailies colorists to restrict their toolset? I’ll explain the theory behind the Color Decision List (CDL). One of the comments he made was about restricting his color corrections to be CDL-compliant. In a previous Insight, colorist Rob Bessette talked about his experience coloring dailies, after a career in commercial color grading. Understanding CDLs (Color Decision Lists)ĭay 22: 25 Insights in 25 Days 2019 New Year Marathon! Meet the ASC-CDL (Color Decision List): The Theory.Tutorials / Marathon Series / 2019 New Year Marathon / What Is A CDL And When Do You Use It? Series

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