Canon Speedlite EL-5 Advanced User's Manual page 134

5.
Before shooting, confirm that flash recharging is finished.
When <
are not fully charged from the icons. For example, the icon shown in (1)
indicates that firing group <
<
For other details on checking recharge status, see step 7 in
with One
Each receiver fires at the same time in the flash mode you have set.
Caution
For < > flash mode, make sure the receivers support auto external flash
metering. Receivers will not fire unless it is supported.
In < > or <
standard exposure for the main subject as if using a single group, which may cause
overexposure if multiple firing groups are pointing toward the main subject.
Note
For details on <
support auto external flash metering.
Letters of groups that fire do not need to be in consecutive alphabetical order; for
example, A, C, E can be set.
Set any group you do not wish to fire to <
step 4. Similarly, modeling lamps of groups set to <
sender <
> is displayed, you can determine which firing groups
> is no longer displayed after all groups are fully charged.
Receiver.
> flash mode, exposure is controlled to obtain
>, refer to the instruction manual of Speedlites that
> button is pressed.
> is fully charged.
> when configuring flash modes in
134
Autoflash
> are not lit when the