Sony S-Log3 → Rec.709

Log → Rec.709 Conversion Sony S-Log3 .cube 947.8 KB

Technical S-Log3 / S-Gamut3.Cine 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 · 69 downloads

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See the Grade Live

Drag the slider to compare ungraded and graded footage. Reference frames are Log3G10 stills from live event footage.

Original Graded

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 74% steeper through the midtones); pushes saturation up around 45%; takes blacks to zero. 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.

Lattice33×33×33 (35,937 points)
Midtone contrast+74% against the input
Saturation+45% on average across the primaries and secondaries
Black point0 IRE
Mid grey out54 IRE
Neutral castneutral throughout
Highlight clippingyes — 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.

Technical Guide

Where middle grey lands in S-Log3, and what follows

S-Log3 puts 18% grey at 41.06%, exactly 420/1023. Headroom, the shoulder, the gamut matrix, and how seven other log formats differ.

Read the guide →

Tags

conversiontechnicalrec709sony s-log3log