Canon EOS-1D X Mark III Advanced User's Manual page 146

Monochrome
Creates black-and-white images.
Caution
Color images cannot be recovered from JPEG images shot with the
[Monochrome] Picture Style.
Note
< > is displayed on the top LCD panel when [Monochrome] is set. You
can also set the camera to display <
User Def. 1–3
You can add a new style based on presets such as [Portrait] or [Landscape] or a
Picture Style file, then adjust it as needed (
has not yet been registered, pictures will be taken with the same characteristics settings
as with the default settings of [Standard].
> in the viewfinder (
). With any User Defined Picture Style that
146
).