Nikon D7500 Menu Manual page 103

❚❚ 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, 0 102), the built-in flash
can be used at shutter speeds as fast as
compatible optional flash units can be used at any shutter speed
(Auto FP High-Speed Sync).
Flash sync speed 1/320 s (Auto FP)
Shutter speed
1 /
From to but not
8000
1 /
including s
320
1 /
From to but not
320
1 /
including s
250
/
1
–30 s
250
* Flash range drops as shutter speed increases. Flash range will nevertheless be greater than that
obtained at the same speeds with Auto FP.
Optional
Built-in
flash
flash
unit
— Auto FP
Flash sync *
s or
1 / 1 /
320
1/250 s (Auto FP)
Optional
Built-in
flash
flash
unit
— Auto FP
— Auto FP
Flash sync
s, while
250
1/250 s
Optional
Built-in
flash
flash
unit
— —
— —
Menu Guide
103