Atomos Sumo 19 HDR10 Grading LUTs v1.0

Atomos Sumo 19 Grading v1.0 - SALE.png
Atomos Sumo 19 Grading v1.0 - SALE.png
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Atomos Sumo 19 HDR10 Grading LUTs v1.0

50.00 100.00

The MBOX Atomos Sumo 19 HDR10 Grading LUTs are designed to help you perceive proper contrast for HDR grading on the Atomos Sumo 19 or 19M

There are nine LUTs provided here: 

  1. Atomos Sumo 19 HDR10 Highs (Rec. 709)
  2. Atomos Sumo 19 HDR10 Highs (P3 D65)
  3. Atomos Sumo 19 HDR10 Highs (Rec. 2020)
  4. Atomos Sumo 19 HDR10 Mids (Rec. 709)
  5. Atomos Sumo 19 HDR10 Mids (P3 D65)
  6. Atomos Sumo 19 HDR10 Mids (Rec. 2020)
  7. Atomos Sumo 19 HDR10 Lows (Rec. 709)
  8. Atomos Sumo 19 HDR10 Lows (P3 D65)
  9. Atomos Sumo 19 HDR10 Lows (Rec. 2020)

These will allow you to cross convert SMPTE ST.2084 (Perceptual Quantization or PQ) HDR signals from any of three color spaces (Rec. 2020, P3 D65, and Rec. 709) into the native color space and dynamic range of the display.

Since the Atomos Sumo 19 has a dynamic range of 10 stops, you cannot see proper contrast throughout the image at the same time - you will either clip the darks, the brights or both.  As such, we've created three brightness ranges you can select from for grading: Highs, Mids, and Lows.

The "Highs" LUTs allow you to center the Sumo's dynamic range in the highs, from around 0.1 nit to 700 nits.  When applying this LUT, set the Sumo's brightness to 100%

The "Mids" LUTs allow you to center the Sumo's dynamic range in the middle ground, from around 0.01 to 200 nits, allowing you to see a little into the darks balanced with some of the highs.  When applying this LUT, set the Sumo's brightness to 50%.

The "Lows" LUTs allow you to center the Sumo's dynamic range in the deep lows, from around 0.005 to 1 nits, allowing you to see the contrast in the darkest parts of the image.  When applying this LUT, set the Sumo's brightness to 0%.

We recommend beginning grading with the "Mids" LUT, then using the "Highs" and the "Lows" to extend your brights and darks.  Use the display's built-in Atom HDR mode with PQ selected and the range slider set to full to see all of the detail preserved at the same time, at the expense of your contrast.

These LUTs are not for grading in HLG.  Atom HDR with the HLG curve and the slider set to full are adequate for HLG grading.

For a demonstration of how the LUTs work and the problems they solve, visit our blog post here.

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