Canon C-Log3 → Rec.709
Technical C-Log3 / Cinema Gamut to Rec.709 conversion. This is a neutral normalisation, not a creative look — it puts log footage on a correct display-referred starting point so you can grade from there. Built from the published transfer function and gamut matrix, with a highlight shoulder so over-white detail rolls off instead of clipping. 33×33×33.
Uploaded by FestivalLuts · 28 downloads
See the Grade Live
Drag the slider to compare ungraded and graded footage. Reference frames are Log3G10 stills from live event footage.
Try it on your footage
Drop in a still and see this LUT on your own frame. Your image stays in your browser — nothing is uploaded.
What this LUT does
Measured from the file itself: it adds contrast (about 36% steeper through the midtones); pushes saturation up around 42%; takes blacks to zero; leans warm shadows. It clips at least one channel on a saturated highlight, so give stage lasers and LED walls a look on the slider above before committing.
| Lattice | 33×33×33 (35,937 points) |
|---|---|
| Midtone contrast | +36% against the input |
| Saturation | +42% on average across the primaries and secondaries |
| Black point | 0 IRE |
| Mid grey out | 63 IRE |
| Neutral cast | shadows warm |
| Highlight clipping | yes — at least one probe pins a channel at 100% |
How this was measured: a 21-step neutral ramp and nine saturated probes are pushed through the lattice and compared with what went in. Contrast is the slope between 35% and 65% input; saturation is the mean change in distance from the grey axis; the cast is the direction a neutral input comes out at three heights. Rec.709 luma throughout — the same coefficients the previewer uses, so these numbers describe the image in the slider above.
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Step-by-step for the app you edit in