Nikon SIGMA EF-630 Instructions page 27

④ When necessary, in the Mode details area, set the flash
exposure compensation value of the group that is set to
i-TTL auto flash.
SLAVE UNIT SETTING
4. Set the Flash mode to [WL SLAVE].
5. Perform the setting by following "PREPARATION OF
WIRELESS FLASH (SLAVE UNIT)".
Place the slave unit, confirm the completion of charging, and
6.
then start shooting (the slave notifies the completion of
charging by blinking the AF assist light.)
WIRELESS MULTI FLASH
Wireless multi-flash is available for one flash or for multiple
flashes.
Use the camera's manual (M) exposure mode.
MASTER UNIT SETTING
1. Set the Flash mode to [WL
2. When necessary, perform "Setting
the channel" and "Master unit flash
setting" in the Mode details area.
3. In the Mode details area, set the flash amount, flash interval
in "Hz" (eg.: 10 Hz = Emits light with the frequency of 10
times per second), and the number of flashes in "x".
Any slave group can beturned off. Select a group to cancel

flash in the Mode details area and set to [OFF].
SLAVE UNIT SETTING
4. Perform the setting by following "PREPARATION OF WIRELESS
FLASH (SLAVE UNIT)".
].
MULTI
5. Set a shutter speed that is slower than the value of the
"number of flashes" / "flash frequency."
6. Place the slave unit, confirm the completion of charging, and
then start shooting (the slave notifies the completion of
charging by blinking the AF assist light.)
SLAVE FLASH
The EF-630 includes a function which allows it to fire by
reacting to the flash from another flash unit. This allows for
easy and convenient shooting with the flash positioned at a
distance from the camera. The light output, however, is not
automatically adjusted in this mode.
NORMAL SLAVE FLASH
The Master unit attached to the camera can be used to trigger
a synchronized flash with the EF-630, even when it's
positioned at a distance from the camera.
Set the Master flash to manual mode and set the flash output
to approximately 1/16.
The camera's integrated flash can be used as a flash as a

control trigger. Set the integrated flash to manual flash mode
on the camera and set the flash amount to approximately 1/16.
Set the camera's exposure mode to M, the shutter speed to
1/30 second or shorter, and the
aperture and ISO at discretional values.
Set the Flash mode of the Slave
1.
EF-630 to [S-FL NORMAL].
In the Mode details area, set the
2.
ISO and the aperture values to
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