Nikon 4799 - F 6 SLR Camera, Инструкция по эксплуатации, Страница: 153 / 192

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Flash Photography
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Auto FP High-Speed Sync
Auto FP High-Speed Sync is activated automatically at shutter speeds faster
than 1/250 sec., allowing auto flash control at all shutter speeds up to and
including 1/8,000 sec. As a result, the flash can be used without concern for
maximum sync speed, even in daylight shots taken at maximum aperture.
To use Auto FP High-Speed Sync, choose “1/250 (FP auto)” for Custom Setting “e1:
Flash sync speed” (
x
104). Auto FP High-Speed Sync supports Advanced Wireless
Lighting. With a single Speedlight, i-TTL flash control, Auto Aperture flash, Distance-
Priority manual, and manual flash mode are available. In multiple flash, you can
choose from i-TTL flash control, Auto Aperture flash, Non-TTL Auto flash, and manual
flash mode.
•
AF-Assist for Multi-Area AF
The SB-800/SB-600 features AF-assist illuminator linked to the F6 focus
areas, allowing autofocus to be used even at night, regardless of the
subject’s position in the frame.
AF-assist illuminator can be used in all AF Area modes, including Single Area AF,
Dynamic AF, Group Dynamic AF, and Dynamic AF with Closest-Subject Priority. If the
subject is poorly lit, the AF-assist illuminator will light automatically when Single
Servo AF is used in combination with a 24-105mm AF Nikkor lens (if a lens wider
than 35mm is used, the illuminator may not light if the focus area at the left or right
edge of the frame are selected).
Shooting situation Flash mode Exposure area
i-TTL mode 6mm-dia. at center
Single Speedlight Exposure area
Auto Aperture flash measured by the
Speedlight
i-TTL mode Entire frame
Multiple flash
Auto Aperture flash with Advanced Exposure area
Wireless Lighting
Non-TTL Auto flash
measured by the
(Master Speedlight)
Speedlight
Exposure area in FV Lock
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