The Sony A7SIII is one of the best video cameras you can buy — but raw S-Log3 footage straight off the card looks like a grey, washed-out mess. That's by design. S-Log3 retains maximum dynamic range, and the job of a LUT is to transform that flat image into a finished, cinematic look.

Here's what you actually need to know.

Why S-Log3 Needs a LUT

S-Log3 captures roughly 15+ stops of dynamic range by compressing highlights and lifting shadows into a flat gamma curve. When you apply a LUT, you're not "fixing" the footage — you're making a deliberate aesthetic choice about what that dynamic range looks like in the final grade.

A bad LUT will crush your blacks, blow your highlights, or introduce colour casts. A good LUT respects the footage and gives you headroom to push further.

The Correct LUT Workflow

  1. Shoot in S-Log3 + S-Gamut3.Cine — this is Sony's recommended colour space for cinematic content
  2. In DaVinci Resolve or Premiere, apply a Creative LUT on a node/effect after your exposure correction
  3. Start with a low-intensity variant and build up — don't jump straight to 100%
  4. Make your primary colour corrections before the LUT, not after

What Makes a Good S-Log3 LUT

A well-built S-Log3 LUT:

  • Handles highlights without clipping (especially in sky or window shots)
  • Preserves skin tone neutrality — no orange blowout or green cast on faces
  • Rolls off shadows naturally rather than crushing them to black
  • Is tuned to a specific input colour space (S-Gamut3.Cine, not generic Rec.709)

Generic free LUTs often skip this last point entirely, which is why they look inconsistent across different cameras and lighting conditions.

  • Talking heads / interviews — 33–50% intensity
  • Travel + lifestyle — 50–66%
  • Cinematic narrative / music videos — 66–100%

The A7SIII renders exceptionally well at higher intensities because of how clean its ISO performance is. You can push the grade further than you could with a noisier sensor.

Getting Started

The Cinema Pack includes 9 cinematic looks across LOG and Standard versions — 18 .cube files total. Use the LOG folder for your S-Log3 footage. Apply on a Creative node after your primary balance, dial the intensity down to 50–70% as a starting point, and build your grade from there.