Nikon R1 Instruction Manual page 44

Procedures for Commander flash operation
Compose a picture and shoot with flash.
6
E A B
L
SEL
READY
LOCK
 If the red ready-light blinks immediately after shooting
44
ON
In TTL mode, when the SB-R200 flash has fired at its maximum
output and underexposure may have occurred, the red ready-
light on the SB-R200 will blink for approx. 3 sec. (The ready-
lights on the SU-800 and in the camera's viewfinder do not
blink.)
To compensate, move closer to the subject, set a higher ISO
sensitivity or use a wider aperture and reshoot.
1
Compose the picture and shoot.
Ensure that the red ready-lights on the
SU-800 and SB-R200 are on, then release
the shutter.
• For details on test firing, refer to page 88.