Nikon D90 User Manual page 208

❚❚ Commander Mode
Use the built-in flash as a master flash controlling one or more remote optional
SB-900, SB-800, SB-600, or SB-R200 flash units in up to two groups (A and B) using
advanced wireless lighting.
Selecting this option displays the menu shown at right. Press 4
or 2 to highlight the following options, 1 or 3 to change.
Option
Built-in
Choose a flash mode for the built-in flash (commander flash).
flash
i-TTL mode. Choose flash compensation from values between +3.0 and –3.0 EV in
TTL
increments of
M Choose the flash level from values between Full and 1/128 (
The built-in flash does not fire, but the AF-assist illuminator lights. The built-in flash
– –
must be raised so that it can emit monitor pre-flashes.
Group A Choose a flash mode for all flash units in group A.
i-TTL mode. Choose flash compensation from values between +3.0 and –3.0 EV in
TTL
increments of
Auto aperture (available only with SB-900 and SB-800 flash units). Choose flash
AA
compensation from values between +3.0 and –3.0 EV in increments of
M Choose the flash level from values between Full and 1/128 (
– – The flash units in this group do not fire.
Choose a flash mode for all flash units in group B. The options available are the
Group B
same as those listed for Group A, above.
Choose from channels 1–4. All flash units in both groups must be set to the same
L
Channel
channel.
Follow the steps below to take photographs in commander mode.
1
Adjust settings for the built-in flash.
Choose the flash control mode and output level for the
built-in flash. Note that output level can not be adjusted in
– – mode.
188
1
/ EV.
3
1
/ EV.
3
Description
1
/ of full power).
128
1
/ EV.
3
1
/ of full power).
128