Nikon D7200 body - Manual (Page 307)

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e2 Flash shutter speed (defaults to 1/60 s)
1/60 s Choose the slowest shutter available
when the flash is used in modes P and A.
1/30 s
1/15 s
1/8 s
1/4 s
1/2 s
1 s
2 s
4 s
8 s
15 s
30 s
e3 Flash cntrl for built-in flash (defaults to TTL)
TTL Choose the flash control mode for the
built-in flash.
Manual
Repeating flash
Commander mode
e3 Optional flash
(defaults to TTL)
TTL Choose the flash control mode for
optional flash units.
Manual
Commander mode
e4 Exposure comp. for flash (defaults to Entire frame)
Entire frame Choose how the camera adjusts flash
level when exposure compensation is
used.
Background only