Manual or OFF with adjustments to EV or power levels.
Ratio is similar to Canon's native TTL system. The ratio of
groups A and B can be set from 8:1 to 1:8. EV levels can
also be adjusted.
To change function screens:
Press the Option button on the TCU. The Option Button
will switch between TTL/Mixed and Ratio screens
TTL/Mixed Functions Screen
The Selection Button allows you to cycle through groups
A, B, and C, and Channel selections. Active selections will
fl ash on the LCD. The - / + buttons will change the EV
adjustments or Power Level while groups A, B or C are
selected and will change the transmission channel (1,
2, 3 or 4) when Channel is selected. This will change the
channel the TCU uses to transmit. The TCU will work on
the last channel which was adjusted.
TTL / M / Off
While groups A, B or C are selected, pressing the
Mode button will change from TTL, (M) Manual, or Off
functions.
6
En
TTL: Will fi re fl ashes using TTL metering. The EV level of
each group can be adjusted up or down (see above).
M: Flashes can be set in Manual mode and power levels
adjusted.
Off : Selecting Off (signifi ed by three underscores _ _ _)
will turn off the selected group and not fi re any remote
fl ashes in that group.
Ratio Functions Screen
The Selection Button allows you to cycle through ratio
A:B adjustment, EV adjustment and Channel selections.
Press the Selection button to access ratio adjustments.
Press the + / - button until the desired A:B ratio is
achieved.
Pressing the Selection button again will move the active
selection to the EV adjustment section. Press the + / -
button until the desired EV level is achieved.
Transmission channels can be changed when CH is
active. This will change the channel the TCU uses to
transmit.
INSTRUCTION MANUAL