Nikon SB-900 - Manual (Page 55)

D–5
D
Flash modes and functions
: Monitor pre-flashes on
: Auto aperture flash on
Auto aperture flash
The SB-900’s built-in sensor measures the flash illumination reflected from the
subject and controls the flash output in combination with data automatically
transmitted from the camera and lens to the SB-900, including the ISO sensitivity
value, the exposure compensation value, the aperture and focal length of the lens.
Auto aperture flash can be changed to Non-TTL auto flash (kD-8) by using the
custom setting. (kC-22)
The default setting is Auto aperture flash (with monitor pre-flashes).
When no aperture information is transmitted from camera to the SB-900,
flash mode is automatically set to Non-TTL auto flash. •
•
Setting the Auto aperture flash mode
Press the [MODE] button.
Rotate selector dial to
indicate or .
Press the [OK] button to
confirm the setting.
Display for Auto aperture flash