Nikon 4804 R1 Wireless Close-Up Speedlight System - Manual (Page 28)

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Procedures for close-up flash operation
1
Installing batteries in the SU-800.
1 Slide open the battery chamber lid
in the direction of the arrow.
2 Install the battery, then close the
battery chamber lid by sliding it
back into place.
Use CR123A (3V) lithium batteries.
Confirming the close-up mode
setting
Make sure that the Commander/Close-up
select switch in the battery chamber is set
to “Close-up” position.
Replacing the battery
The Low Battery-power Indicator blinks
when the SU-800’s ready-light does not
come on within about 30 seconds of
turning on the power or after the flash has
fired.
• Replace the battery.
Battery
chamber