Do Dispersion Render
Select the Colorband Mode: 3 Band (RGB) or 6 Band (RYGCBM).
Activate Chromatic Aberration Effect.
The amount of distortion is set here. The Range is from -2 to 2.
The amount of Aberration.
Activate Dispersion Effect.
The amount of IOR is set here.
The amount of Dispersion is set here.
Select a Diamond Shader to calculate the Dispersions Effect.