Nikon 4807 - SB 900 Speedlight, User Manual

Page: 53 / 144

D – 3
D
Flash modes and functions
t
Monitor pre-fl ashes
In i-TTL mode, immediately before the flash fires, the SB-900 fires a series of
imperceptible pre-flashes to analyze the information of the subject. •
SB-900 flash shooting distance range
The flash shooting distance range is
indicated by numbers and a bar chart
on the LCD.
Set the shooting distance within this range.
The range varies depending on ISO
sensitivity, camera's image area
setting, illumination pattern, angle
of coverage and aperture. For more
information, see “Specifications.”
(
k
F-16)
•
•
t
Auto setting of ISO sensitivity, aperture and focal length
When using with a CLS-compatible camera and a CPU lens, SB-900's ISO sensitivity,
aperture and focal length are automatically set according to camera setting.
For more information about the ISO sensitivity range, see the camera’s
user’s manual. •