Nikon D5500 Reference Manual page 392

Focus
Lens servo
Focus point
AF-area mode
Focus lock
Flash
Built-in flash
Guide Number
Flash control
Flash mode
Flash compensation
Flash-ready indicator
368 Technical Notes
• Autofocus (AF): Single-servo AF (AF-S);
continuous-servo AF (AF-C); auto AF-S/AF-C
selection (AF-A); predictive focus tracking
activated automatically according to subject
status
• Manual focus (MF): Electronic rangefinder can be
used
Can be selected from 39 or 11 focus points
Single-point AF, 9-, 21-, or 39- point dynamic-
area AF, 3D-tracking, auto-area AF
Focus can be locked by pressing shutter-release
button halfway (single-servo AF) or by pressing
A (L) button
i, k, p, n, o, s, w, S, T, U, ' : Auto flash
with auto pop-up
P, S, A, M, 0: Manual pop-up with button release
Approx. 12/39, 12/39 with manual flash (m/ft,
ISO 100, 20 °C/68 °F)
TTL: i-TTL flash control using 2016-pixel RGB
sensor is available with built-in flash; i-TTL
balanced fill-flash for digital SLR is used with
matrix and center-weighted metering, standard
i-TTL flash for digital SLR with spot metering
Auto, auto with red-eye reduction, auto slow
sync, auto slow sync with red-eye reduction, fill-
flash, red-eye reduction, slow sync, slow sync
with red-eye reduction, rear-curtain with slow
sync, rear-curtain sync, off
Can be adjusted by –3 – +1 EV in increments of
1 1
EV in P, S, A, M, and h modes
/ or /
3 2
Lights when built-in flash or optional flash unit
is fully charged; blinks after flash is fired at full
output