Nikon R1 Instruction Manual page 37

Compose a picture and shoot with flash.
9
E A B ON
L
SEL
READY
LOCK
 If the red ready-light blinks immediately after shooting
1
Compose the picture and shoot.
Confirm 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.
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, set a higher ISO sensitivity or use a wider
aperture and reshoot.
37