What Is a LUT — and Why Does It Matter?
Everything a filmmaker needs to understand color grading, look-up tables, and how to use them in any NLE.
What is a LUT?
A LUT — Look-Up Table — is a mathematical file that maps one set of color values to another. Think of it as a translation guide: every input color has a predetermined output color.
When you shoot in S-Log, C-Log, or any flat log profile, your footage looks washed out by design. That flatness preserves the maximum dynamic range. A LUT is what unlocks it — transforming that low-contrast footage into a finished, cinematic image in a single click.
LUT files are typically .cube or .3dl format and are supported by every major NLE and color grading platform.
Low contrast, desaturated. Preserves shadows and highlights for post.
Warm, film-grade tone. Rich shadows, lifted midtones, creamy highlights.
1D LUTs vs. 3D LUTs
Not all LUTs are created equal. The dimension tells you how sophisticated the color transformation is — and which jobs each type is built for.
Simple Tone Mapping
Maps each channel (R, G, B) independently. Controls brightness and contrast curves only. Fast, lightweight, ideal for monitoring on-set or exposure calibration.
Full Color Transformation
Maps every combination of R, G, B simultaneously. Controls hue, saturation, and luminance all at once. The industry standard for creative looks, film emulation, and log-to-display transforms.
How to Apply a LUT
MoonBear LUTs work inside every major editing platform. Here's where to find the import dialog in each one.
Two modes: Technical vs. Creative
Before applying any LUT, decide which job it's doing in your grade.
Technical LUT
Converts your camera's log format (S-Log3, C-Log3, BRAW) to a display-ready standard like Rec.709 or Rec.2020. This is the foundation — always applied first, before any creative grade.
Creative LUT
Adds a specific look — warm vintage tones, cold desaturated shadows, high contrast noir. Applied on top of (or in place of) the technical conversion. This is where MoonBear's packs live.
Monitor LUT
Applied only to the preview output, not baked into the file. Used on-set so directors and DPs can see the final look while shooting log. Doesn't affect the recorded footage.
The Color Grading Order
Applying a LUT at the wrong point in your node tree ruins the result. Follow this sequence for professional-grade output.
Exposure Balance
Before any LUT, correct exposure on all clips to a neutral baseline. Bring down blown highlights, lift crushed shadows. Your LUT will behave consistently only if input levels match.
Apply Technical LUT (Log → Display)
Convert your log footage to Rec.709 or your target color space. This is the technical foundation. In DaVinci, place this on a dedicated input node before anything else.
Apply Creative LUT — Reduced Opacity
Add your MoonBear creative LUT at 75–85% strength. Full intensity often feels heavy on skin tones and skies. A slight pullback gives you the look without sacrificing naturalism.
Secondary Corrections
Use selective color masks or qualifier tools to finesse skin tones, skies, and any colors the LUT pushed too far. The LUT is a starting point, not the finish line.
Final Output Transform
Add your delivery LUT or OOTF (Output Optical Transfer Function) for the target platform — YouTube, broadcast, cinema. This handles the final nits and color space conversion.
Cinematic LUTs Built for Real Productions
Trusted by editors at Adidas, NASCAR, Bulgari, and Warner Music. Every pack tested on real footage, real cameras, real projects.