Canon EOS R3 Digital Cinema Lens Color Grading with the ACES Workfl

Color Grading with the ACES Workflow

You can perform color grading using ACES, the color encoding system defined by the Academy of Motion Picture Arts and

Sciences. This workflow allows you to perform on-set color grading while continuing to shoot.

Color spaces:

-

[Canon Log 2], [Canon Log 3], [Cinema Gamut]: Canon’s original color

spaces. Cinema Gamut primaries, and a log 10-bit integer encoding.

-

[ST2065-1]: AP0 primaries, linear floating-point encoding.

-

[ACESproxy]: AP1 primaries, log 10-bit or 12-bit integer encoding.

-

[ACEScc]: AP1 primaries, log floating-point encoding.

-

[ACEScct]: AP1 primaries, log floating-point encoding. Differs from

ACEScc by adding a ‘toe’ to the encoding, with a behavior resembling

that of the Cineon curve.

ACESproxy:

ACESproxy video data that is output from the camera’s output terminals

when performing on-set color grading. Select the [ACESproxy] option

for the LUT setting, depending on where the video is to be output.

Input Transform:

Refers to the table used for converting color information of the input device to ST2065-1 color space. It can be downloaded

from Canon’s website.

-0.2

0

0.2

0.4

0.6

0.8

1

1.2

-0.2

0

0.2

0.4

0.6

0.8

1

ｘ

BT.709

BT.2020

Cinema Gamut

AP0

AP1

Post-production

Color grading

(ACEScc/ACEScct)

Output

Transform

ASC-

CDL

RAW

Decode

RAW*

data

XF-AVC*

/ MP4*

data

Recording

Media

LUT*

ACESproxy*

On-set

Color Grading

ASC-

CDL

Terminal

Output

OpenEXR

(ACES)

Canon Log 2 / 3

Cinema Gamut

Color Matrix: Neutral **

Input

Transform

Input

Transform

Cinema RAW

Development

Input

Transform

Display

Camera