4:20 I don't think CcMmYK has lager gamut than common CYMK since the light cyan and light magenta sit inside CMYK gamut itself. The addition of Lc and Lm is to make smoother gradient for pastels or light valued colors because the sparse dots of normal Cyan or Magenta can make the picture looks grainy.
Very nicely presented and excellent information. Thank you for making this short-course public.
4:20 I don't think CcMmYK has lager gamut than common CYMK since the light cyan and light magenta sit inside CMYK gamut itself. The addition of Lc and Lm is to make smoother gradient for pastels or light valued colors because the sparse dots of normal Cyan or Magenta can make the picture looks grainy.