Nikon D7100 - Manual (Page 273)

245
U
❚❚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, 0 244), 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 (0 305) 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
mode P or A (regardless of the setting chosen, shutter speeds
can be as slow as 30 s in S and M 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 /
8000
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.
e2: Flash Shutter Speed
G
button ➜ A Custom Settings menu