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Part 1: Understanding How To Use the Target and Source Pull Pulldowns with RAW
About a month ago this Tweet hit the Mixing Light Twitter account about Color Charts with RAW:
@MixingLight can you a article or video explaining color char match in Resolve in ACeS Workflow for Alexa Red and other cameras. Not working
— Balaji Gopal (@gopalbalaji) January 5, 2017
@MixingLight we are using x-rite chart but whatever be color chart in ACES we are not getting right color match and have contrast image
— Balaji Gopal (@gopalbalaji) January 5, 2017
In other words, @gopalbalaji was asking us… is Color Match broken in ACES workflows?
(the short answer: No.)
In Part 1 we’re going to explore the proper Target and Source Pull-Downs with Color Charts in RAW
The explanation is easier if we separate the discussion of LOG or RAW recordings from the discussion of the ACES workflow using DaVinci Resolve’s Color Match feature. In full disclosure, I can answer @gopalbalaji’s tweet with a single screen shot, showing the proper settings for ACES—but instead let’s turn this excellent question into a ‘teachable moment‘.
The challenge with RAW footage is its chameleon-like nature
Using Resolve’s RAW Settings panel you can develop your footage into many different color spaces and gamma curves. Heck, you can develop RAW into a Log space, color grade into a Rec.709 profile and THEN do the Color Match! If you get your settings wrong, the Color Match utterly fails. If you get the settings right, Color Match works like a charm. And if you don’t understand the theory then this is a hit-or-miss game.
This Insight is hands-on, helping you become intentional about selecting your Color Match settings
The best way for me to help you is for you to follow along. I’m using footage from Red.com’s sample footage:
- Download the Weapon 6K footage on this page – It’s the image with the girl and the color chart
- If you’ve never watched the Color Match series on Mixing Light, start there before watching this Insight – The first Insight in that series is titled Why Is Camera Matching with Color Charts So Hard? The series walks through the Color Match feature and my approach to it in DaVinci Resolve.
This two-part series on Color Matching Color Charts with RAW and LOG is being tagged to the end of that original series, since its a natural completion to those thoughts.
In Part 2 you will apply what you learn here to the ACES workflow
Part 2 is likely to be the shortest Insight I’ve ever recorded! Why? Because once you understand the concepts in this movie, mastering Color Match in ACES is a no-brainer!
Enjoy!
