Stop using CSTs! Every colorist should have this DCTL

Cullen Kelly June 27, 2025
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Cullen Kelly

@cullenkelly

About

Professional colorist, image scientist, and educator obsessed with the power of a well-crafted image. My work has spanned narrative, commercial, and music video work showcasing the world's biggest brands and talent, and has included critically acclaimed series and Academy Award nominations. Alongside grading, I'm committed to helping my fellow filmmakers realize their creative vision in camera and in the grade. You can check out my reel here: https://vimeo.com/1103200718

Video Description

Time to share one of my favorite DCTLs which just got a huge update — it'll help you get better looks and better grades instantly, ESPECIALLY if you're still using CSTs instead. FAQ: Q: Do I still need to use a CST at the start of my color management? A: Yes! OpenDRT only replaces the CST you use at the end of your pipeline. Q: What’s color management? A: Welcome to the channel! There’s a ton of color management content here but start with this: https://youtube.com/live/JpRuQQ__-YA?feature=share Q: Can I use OpenDRT on any version of Resolve? A: No, you need Resolve Studio to use OpenDRT or any other DCTL. (I’ll continue to update this section) Timestamps: 0:51 – How to find and install OpenDRT 2:50 – OpenDRT is different - here's why it matters 5:33 – Dissecting the baseline Look Preset in OpenDRT 6:00 – How to use the tonescale presets 9:44 – How OpenDRT compare to a CST 11:15 – Evaluating OpenDRT and how it handle multiple pixel across multiple images 13:59 – How this can give you way more creative control 15:25 – The most important part of your grade 18:45 – Creating a good starting point when creating your print 21:31 – How does your Look Preset choice shape your contrast and tonal scale Get OpenDRT here https://github.com/jedypod/open-display-transform/blob/main/display-transforms/opendrt/OpenDRT.dctl -------- Get Hollywood-quality grades using tools built by the Oscar-winning filmmaker that built the Joker LUT, and the cinematographer behind Star Wars VIII and Knives out: https://procolor.ist/genesis Grab my Voyager LUT Pack. 17 LUTs to provide beautiful looks for any type of project so you can grade faster, take every image further, and attract better and better jobs. http://procolor.ist/voyager-lut-pack Get my free Kodak 2383 film print LUT for DWG and ACES here: http://procolor.ist/freelut Check out my ebook, The Colorist's 10 Commandments: http://procolor.ist/ebook Start creating your own studio-quality show LUTs, camera LUTs, and LUT packs with my pro look design plugin Contour (free trial available): https://procolor.ist/contour-official/ Looking for RAW footage to work with? I use Artlist: https://bit.ly/436l137

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