Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 138)

3.
Enter text.
Use the < > or < > dial to select a character, then press < > to
enter it.
By selecting [ ], you can change the input mode.
To delete single characters, select [ ] or press the < > button.
4.
Exit the setting.
Press the < > button, then press [ OK ].
The information is saved, and display returns to the screen in step 2.
The entered name is displayed below < * >.
Note
As names, it may be helpful to enter the names of places where you registered the
custom white balances, or the names of the light sources.
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