LogC4 to Rec.709

ARRI ALEXA 35 LUT (LogC4 to Rec.709)

We haven't finished checking our LogC4 conversion against ARRI's own LUT, so until we have, use ARRI's free LUT.

LogC4 to Rec.709

Download ARRI's free official LogC4 LUT

It's free on ARRI's site; we link to it rather than host a copy. Apply it in your editor the way the install guides below show.

Open ARRI's download page

Looks to put on top are coming

We're making creative looks with a Rec.709 version that goes on after ARRI's LUT. Leave your email and we'll write once when they're out.

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Set up the ALEXA 35

  • Records ARRIRAW or Apple ProRes (4444 XQ / 4444 / 422 HQ) in LogC4 / ARRI Wide Gamut 4 (REVEAL colour science). Rec.709/2020/2100 are display outputs.
  • EI 160-6400 in 1/3 stops; 17 stops dynamic range.

Exposure

ARRI LogC4 Specification: 18% grey maps to LogC4 0.2784 (normalised).

Sources

  • arri.com

    EI 160-6400; 17 stops; ARRIRAW/ProRes; ARRI Wide Gamut AWG4, LogC4 curve, LogC4 display LUTs; page now sits under ARRI's legacy cameras

  • arri.com

    LogC4 LUT package (.cube) download for ALEXA 265 / 35 / 35 Xtreme; the LUT Generator does not support LogC4

  • arri.com

    Relative scene linear 0.18 encodes to LogC4 0.2784

  • cined.com

    Secondary source (CineD, May 31 2022) for the announcement date

Updated September 26, 2026