Nikon D6, Reference Manual

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693
Optical AWL
7
C
/
f
: Take the photograph after confirming that
the flash-ready lights for all flash units are lit.
D
Optical AWL
•
Position the sensor windows on the remote flash units to pick up the
light from the master flash. Particular care is required if the master flash
is mounted on a hand-held camera.
•
Be sure that direct light or strong reflections from the remote flash units
do not enter the camera lens (in [
TTL ] mode) or the photocells on the
remote flash units ([ q A ] mode). Otherwise light from the flash units
may interfere with exposure.
•
Even if [ -- ] is selected for [ Master flash ] > [ Mode ], the master flash may
emit low-intensity timing flashes. These flashes may appear in
photographs taken at short range. This can be prevented by choosing
low ISO sensitivities or small apertures (high f-numbers).
•
After positioning the remote flash units, take a test shot and view the
results in the camera display.