Guide

How to apply a LUT in Final Cut Pro.

Updated November 5, 2026

Final Cut Pro applies .cube LUTs as a Custom LUT in color correction. Keep technical conversions separate from creative looks, then dial Mix so the grade stays natural on skin and mixed lighting.

Before you start

• Unzip the download so Final Cut sees a real .cube file.
• If the footage is log, convert to Rec.709 first (or use a camera/conversion LUT only for that step). See Log vs Rec.709.
• Prefer 33-point cubes for everyday looks; keep a 65-point copy for soft gradients if you need it.

Step 1: Select the clip and open Color

1. Select the clip (or an adjustment clip above a stack) in the timeline.
2. Open the Color Inspector / Color board area for that clip.
3. Plan one correction lane for the creative LUT so you can mute or reorder it without undoing exposure work.

Step 2: Add a Custom LUT

1. In the color / effects tools for the clip, choose to add a Custom LUT (or browse to a .cube from Effects / Color LUTs, depending on your Final Cut version).
2. Point Final Cut at the unzipped .cube file.
3. Confirm the viewer updates with the look applied.

If the file will not load, it may still be zipped, have the wrong extension, or sit in a folder Final Cut has not indexed yet. Format notes: What is a .cube file?

Step 3: Mix / amount and order

• Use Mix (or the equivalent amount control) for strength. Start around 60–80% on mixed lighting; full strength is often too much.
• Order that usually travels well: balance exposure and white balance → technical conversion if needed → creative Custom LUT → secondary work for skin and skies.
• Do not stack a creative look on unconverted log, and do not stack two creative LUTs.

Role of each tool: LUT vs color grade.

Step 4: Check before you export

• Watch waveform / histogram for crushed blacks and clipped highlights.
• Check skin; pull Mix back if faces go green or magenta.
• A/B by toggling the Custom LUT off, then flip through a bright exterior, a dark interior, and a close-up.

Preview any .cube on your own still in the free LUT previewer (nothing uploads). Premiere steps: How to apply a LUT in Premiere Pro. Resolve steps: How to apply a LUT in DaVinci Resolve. General notes: How to use a LUT.

Where Filmsilk fits

Filmsilk ships standard 3D .cube looks for Rec.709 that load the same way in Final Cut, Premiere, Resolve, CapCut, and Photoshop. Try every look on your own frame before you buy. The Collection is $29 one-time; Filmsilk Complete is $39 with Studio export.