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❚❚Auto FP High-Speed Sync
When 1/320 s (Auto FP) or 1/250 s (Auto FP) is selected for
Custom Setting e1 (Flash sync speed, 0 299), the built-in flash can
be used at shutter speeds as fast as
1
/320 s or
1
/250 s, while
compatible optional flash units (0 382) can be used at any shutter
speed (Auto FP High-Speed Sync).
This option determines the slowest shutter
speed available when using front- or rear-
curtain sync or red-eye reduction in
programmed auto or aperture-priority auto
exposure modes (regardless of the setting
chosen, shutter speeds can be as slow as 30 s
in shutter-priority auto and manual exposure modes or at flash
settings of slow sync, slow rear-curtain sync, or red-eye reduction
with slow sync).
Options range from
1
/60 s (1/60 s) to 30 s (30 s).
Flash sync speed 1/320 s (Auto FP) 1/250 s (Auto FP) 1/250 s
Shutter speed
Built-in
flash
Optional
flash unit
Built-in
flash
Optional
flash unit
Built-in
flash
Optional
flash unit
From
1
/8,000 to but
not including
1
/320 s
— Auto FP — Auto FP — —
From
1
/320 to but not
including
1
/250 s
Flash sync
*
—Auto FP— —
1
/250–30 s Flash sync
* Flash range drops as shutter speed increases.
Flash range will nevertheless
be greater than that obtained at the same speeds with Auto FP.
D The Flash-Ready Indicator
When the flash fires at full power, the flash-indicator in the camera
viewfinder will blink to warn that the resulting photograph may be
underexposed.
Note that the flash-ready indicators on optional flash
units will not display this warning when 1/320 s (Auto FP) is selected.
e2: Flash Shutter Speed
G button ➜ A Custom Settings menu