Nikon D5100 Reference Manual page 247

Exposure
ISO sensitivity ISO 100 – 6400 in steps of
2 EV (ISO 25600 equivalent) above ISO 6400; auto ISO sensitivity control
(Recommended
Exposure Index) available
Active D-Lighting Auto, extra high, high, normal, low, off
Focus
Autofocus Nikon Multi-CAM 1000 autofocus sensor module with TTL phase
detection, 11 focus points (including one cross-type sensor), and AF-
assist illuminator (range approx. 0.5–3 m/1 ft. 8 in.–9 ft. 10 in.)
Detection range –1 – +19 EV (ISO 100, 20 °C/68 °F)
Lens servo • Autofocus (AF): Single-servo AF (AF-S); continuous-servo AF (AF-C); auto
• Manual focus (MF): Electronic rangefinder can be used
Focus point Can be selected from 11 focus points
AF-area mode Single-point AF, dynamic-area AF, auto-area AF, 3D-tracking (11 points)
Focus lock Focus can be locked by pressing shutter-release button halfway (single-
servo AF) or by pressing AE-L/AF-L button
Flash
i, k, p, n, o, s, w, g: Auto flash with auto pop-up
Built-in flash
P, S, A, M, 0: Manual pop-up with button release
Guide Number Approx. 12/39, 13/43 with manual flash (m/ft, ISO 100, 20 °C/68 °F)
Flash control • TTL: i-TTL balanced fill-flash and standard i-TTL flash for digital SLR
• Auto aperture: Available with SB-900/SB-800 and CPU lens
• Non-TTL auto: Supported flash units include SB-900, SB-800, SB-80DX,
• Distance-priority manual: Available with SB-900, SB-800, and SB-700
Auto, auto with red-eye reduction, auto slow sync, auto slow sync with
Flash mode
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
–3 – +1 EV in increments of
Flash compensation
Flash-ready indicator Lights when built-in flash or optional flash unit such as SB-900, SB-800,
SB-700, SB-600, or SB-400 is fully charged; blinks for 3 s after flash is fired
at full output
Accessory shoe ISO 518 hot-shoe with sync and data contacts and safety lock
Nikon Creative Lighting Advanced Wireless Lighting supported with SB-900, SB-800, or SB-700 as
a master flash, or SU-800 as commander; Flash Color Information
System (CLS)
Communication supported with built-in flash and all CLS-compatible
flash units
Sync terminal AS-15 sync terminal adapter (available separately)
AF-S/AF-C selection (AF-A); predictive focus tracking activated
automatically according to subject status
using 420-pixel RGB sensor are available with built-in flash and SB-900,
SB-800, SB-700, SB-600, or SB-400 (i-TTL balanced fill-flash is available
when matrix or center-weighted metering is selected)
SB-28DX, SB-28, SB-27, and SB-22S
1
/ EV. Can also be set to approx. 0.3, 0.7, 1, or
3
1 1
/ or / EV
3 2
n
229