Canon EOS-1D X Mark III Advanced User's Manual page 575

Connecting Manually by Specifying Networks
Instructions in this section are continued from
Connect to an access point by entering its SSID (or ESS-ID).
Entering the SSID
1.
Select [Manual settings].
2.
Enter the SSID (network name).
Press < > to access the virtual keyboard (
encryption key.
Select [OK].
Checking the Type of Access
575
Point.
), then enter the