Canon 550EX - Manual (Page 104)

5. Master Flash ON/OFF
The master unit’s flash firing can be enabled (ON) or disabled (OFF).
(
1
) (’"i
0
n) : This setting enables the master unit to fire a flash.
• This setting is ceiled “Master flash ON.”
• This setting automatically sets the master unit’s slave ID to A.
(2) ^ (’^ 0 FF ) : This setting (Master flash OFF) prevents the master unit
from firing a flash. It can still transmit wireless signals to
trigger the slave units.
§-
TTL dZoQtnl^fnvti
\ MODE +_____________ — SEL/Ser ZOOM
___im -Tl.. ..tni
r>8E
3
l
H Press the <SEL/SET > button and
* select
• Pressing the <SEL/SET > button changes
the selection in the following loop:
I----------------------- (Off) -r
□
2
3
Press the <+> or <-> button to set
either
O n o r D
FF .
Press the < SEL/SET > button.
• or ^ will appear.
• If master flash OFF is set, •«■z. will blink.
104