Instruction manual

5150
The ring flash has four focus lamps mounted near the flashtubes in
the lighting unit. These lamps make framing subjects easy and pro-
vide light for the camera’s autofocusing system.
FOCUS LAMPS (RING FLASH ONLY)
Press the A-B / lamp button on
the back of the controller.
• After the A-B / lamp button is pressed,
the focus lamps will turn on for a little
more than 10 seconds.
• The focus lamps can be turned off
manually by pressing the A-B / lamp
button again.
• Unlike the modeling flash, it is not possible to preview the shadows
with the focus lamps.
• The illumination period of the lamps will be extended if an operation is
made on the camera or controller while the focus lamps are on.
• When the shutter is released while the focus lamps are on, the lamps
will automatically turn off for the exposure and then turn on again after
the picture is taken.
• When using rear sync flash, manually turn off the focus lamps in
advance; they will not turn off automatically.
• By using custom functions, the focus lamps’ automatic turn-off feature
can be canceled (p. 52).
DIFFUSER (TWIN FLASH ONLY)
• When removing, remove the diffuser while
holding its adapter’s top tab.
• When storing, refold the diffuser, and
secure it by clipping the adapter to the dif-
fuser.
• The flash output is reduced when using the diffuser. See page 32 for
TTL flash metering, or page 43 for manual flash metering.
• When folding the diffuser, pull the tab off
the dimple as shown. The tab can now be
easily removed.