Canon MACRO RING LITE MR-14EX II Mode D'emploi page 13

Manual flash
q : Manual flash
Firing group
4 : Fire A
5 : Fire B
Wireless multiple flash shooting with optical transmission
(p.43)
g : Wireless shooting
(master)
Firing group
l : Fire A:B (flash
ratio control)
4 : Fire A
5 : Fire B
6 : Fire C
(slave C)
j : Fire A, B, and C
(only when C.Fn-15 is set to 1)
(p.32)
Nomenclature
Manual flash
output
M : Master
: : Optical
transmission
wireless shooting
* : Transmission
channel
11