Gamut / Gamma Transfer 3D LUT (3D Look-Up Table), Version 1.1

• LUT Category
  Viewing LUT
   
• LUT Overview
  A 3D LUT that converts from BT.2020 Gamut / BT.709 Gamut and Canon Log gamma.
   
• File Format
  .cube format
   
• Applicable Models
  Different 3D LUTs are used because different products have different gamma settings.
  Check the correspondence table below before use.
  
  [Group 1]
  EOS-1D C, EOS 5D Mark IV
  
  [Group 2]
  EOS R
   
• Correspondence Table

  Input			Output				Applicable Group
  Gamut	Gamma	Range	Gamut	Gamma	Range	Grids	1	2
  BT.2020 Gamut	Canon Log	Full	BT.709 Gamut	BT.709 (Gamma 2.2)	Full, Narrow	17, 33, 65		✓
  BT.2020 Gamut	Canon Log	Full	BT.709 ​Gamut	Wide DR	Full, ​Narrow	17, 33, 65		✓
  BT.2020 Gamut	Canon Log	Full	BT.2020 Gamut	Wide DR	Full, ​Narrow	17, 33, 65		✓
  BT.709 Gamut	Canon Log	Full	BT.709 ​Gamut	Wide DR	Full, ​Narrow	17, 33, 65	✓	✓

• File naming conventions
  [Gamut]_[Gamma]-to-[Gamut]_[Gamma]_[GridNum]_[Range] [Range]_[Version].cube
       (2)           (2)               (3)           (4)            (5)              (6)         (7)          (8)
  
  Example: CinemaGamut_CanonLog-to-BT709_BT709_17_FF_Ver.1.1.cube
  9.   Input gamut
  10. Input gamma
  11. Output gamut
  12. Output gamma
  13. Grids
  14. Input range (N: Narrow, F: Full)
  15. Output range (N: Narrow, F: Full, L: Linear)
  16. Version
   
• Explanation of the data format
  Example: 17 Grid version
   

  Lines beginning with the pound sign (#)	Comments about the 3D LUT file
  LUT_3D_SIZE 17	Table size (17 x 17 x 17)

   

  0.000000 0.000000 0.000000 0.000026 0.000000 0.000000 0.079094 0.000000 0.001118 0.205855 0.000250 0.000000

  Data (R G B, red fastest)

• LUTs for conversions to Wide DR
  The Narrow range version of Wide DR is a curve that was used into the super-whites
  (outputs over 100%), whereas with the Full range version of Wide DR, this curve is
  compressed in a format to fit within 100% output.