Nikon D4S User Manual
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454
n
Focus
Autofocus
Nikon Advanced Multi-CAM 3500FX autofocus sensor
module with TTL phase detection, fine-tuning, and 51
focus points (including 15 cross-type sensors; f/8
supported by 11 sensors)
Detection range
–2 – +19 EV (ISO 100, 20 °C/68 °F)
Lens servo
• Autofocus (AF): Single-servo AF (AF-S); continuous-servo
AF (AF-C); predictive focus tracking automatically
activated according to subject status
• Manual focus (M): Electronic rangefinder can be used
Focus point
Can be selected from 51 or 11 focus points
AF-area mode
Single-point AF, 9-, 21-, or 51- point dynamic-area AF,
3D-tracking, group-area AF, auto-area AF
Focus lock
Focus can be locked by pressing shutter-release button
halfway (single-servo AF) or by pressing the center of
the sub-selector
Flash
Flash control
TTL
: i-TTL flash control using RGB sensor with
approximately 91K (91,000) pixels is available with
SB-910, SB-900, SB-800, SB-700, SB-600, SB-400, or
SB-300; i-TTL balanced fill-flash for digital SLR is used
with matrix and center-weighting metering, standard
i-TTL flash for digital SLR with spot metering
Flash mode
Front curtain sync, slow sync, rear-curtain sync, red-eye
reduction, red-eye reduction with slow sync, slow rear-
curtain sync, off, Auto FP High-Speed Sync supported
Flash compensation
–3 – +1 EV in increments of
1
/
3
,
1
/
2
, or 1 EV
Flash-ready indicator
Lights when optional flash unit is fully charged; flashes
after flash is fired at full output
Accessory shoe
ISO 518 hot-shoe with sync and data contacts and
safety lock