Nikon SB 900 User Manual - Page 59

Flash shooting distance range in Non-TTL auto flash mode - speed flash

Page 59 highlights

t Monitor pre-flashes • Monitor pre-flashes on or off can be set by using the custom setting. (kC-22) • When the monitor pre-flashes are activated, the SB-900 fires a series of imperceptible monitor pre-flashes immediately before the flash fires to obtain information on the subject. • To perform the Auto FP-High Speed Sync (kD-55) or FV Lock (kD-55), activate the monitor pre-flashes. Flash shooting distance range in Non-TTL auto flash mode 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, D camera's image area setting, illumination pattern, angle of coverage and aperture. For more information, see "Specifications." (kF-16) v When using a telephoto lens in the Non-TTL auto flash mode • When shooting using a telephoto lens in Non-TTL auto flash mode, underexposure may occur even though the subject is within flash shooting distance range. • Use of the i-TTL mode is recommended. Flash modes and functions D-9

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D
9
D
Flash modes and functions
t
Monitor pre-flashes
Monitor pre-flashes on or off can be set by using the custom setting. (
k
C-22)
When the monitor pre-flashes are activated, the SB-900 fires a series of
imperceptible monitor pre-flashes immediately before the flash fires to obtain
information on the subject.
To perform the Auto FP-High Speed Sync (
k
D-55) or FV Lock (
k
D-55),
activate the monitor pre-flashes.
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)
Flash shooting distance range in Non-TTL auto flash mode
v
When using a telephoto lens in the Non-TTL auto flash mode
When shooting using a telephoto lens in Non-TTL auto flash mode,
underexposure may occur even though the subject is within flash
shooting distance range.
Use of the i-TTL mode is recommended.