Canon EOS M3 EF-M 18-55mm IS STM Kit Black Manual (en)

Make adjustments.
The horizontal axis shows the input level and the vertical axis 
shows the output level.
The maximum number of [ ] is 8.
To delete a [ ], either press the <Del> key or double-click on the [ ].
You can display pre- 
and post-adjustment 
RGB: Adjusts RGB 
in a batch
R, G, B: Adjusts 
each channel
Coordinates of [
(when several 
coordinates are set, 
coordinates of last-
set [
Example of a Tone Curve Operation
Makes medium tones brighter
Makes medium tones darker
Makes tones sharper
Makes tones softer