Nikon D4s User Manual

105
N
Focus Lock
Focus lock can be used to change the composition after focusing,
making it possible to focus on a subject that will not be in a focus
point in the final composition.
If the camera is unable to focus
using autofocus (0 107), focus lock can also be used to recompose
the photograph after focusing on another object at the same
distance as your original subject.
Focus lock is most effective
when an option other than auto-area AF is selected for AF-area
mode (0 100).
1 Focus.
Position the subject in the
selected focus point and press
the shutter-release button
halfway to initiate focus.
Check
that the in-focus indicator (I )
appears in the viewfinder.
2 Lock focus.
AF-C focus mode (0 97): With the
shutter-release button pressed
halfway (q), press the center of
the sub-selector (w) to lock
both focus and exposure (an
AE-L icon will be displayed in the
viewfinder).
Focus will remain
locked while the center of the
sub-selector is pressed, even if
you later remove your finger
from the shutter-release button.
Shutter-release button
Center of sub-selector

Nikon D4s Specifications

General

Megapixel	16.2 MP
Camera type	SLR Camera Body
Sensor type	CMOS
Image stabilizer	No
Total megapixels	16.6 MP
Image sensor size	- \
Image formats supported	JPG, RAW, TIF
Maximum image resolution	4928 x 3280 pixels
Image sensor size (W x H)	36 x 23.9 mm
Still image resolution(s)	4928 x 3280, 3696 x 2456, 2464 x 1640, 3200 x 2128, 2400 x 1592, 1600 x 1064, 4096 x 3280, 3072 x 2456, 2048 x 1640, 4096 x 2720, 3072 x 2040, 2048 x 1360
Optical zoom	- x
Focal length range	- mm
Lens mount interface	Nikon F
Minimum aperture number	-
Auto focusing (AF) modes	Multi Point Auto Focus, Single Auto Focus, Tracking Auto Focus
ISO sensitivity	200, 25600
Light exposure modes	Aperture priority AE, Auto, Manual, Shutter priority AE
ISO sensitivity (max)	25600
ISO sensitivity (min)	200
Fastest camera shutter speed	1/8000 s
Slowest camera shutter speed	30 s
Flash modes	Red-eye reduction, Slow synchronization
Flash sync-speed	1/250 s
Flash exposure correction	-3EV - +1EV (1/3 EV step)
Video recording	Yes
Video resolutions	640 x 424, 1280 x 720, 1920 x 1080 pixels
Motion JPEG frame rate	60 fps
Video formats supported	H.264, MPEG4
Maximum video resolution	1920 x 1080 pixels
Audio formats supported	LPCM
Memory slots	2
Internal memory	- MB
Compatible memory cards	CF, XQD
Display diagonal	3.2 \
Display resolution (numeric)	921000 pixels
Magnification	0.70 x
Viewfinder type	Electronic
USB version	2.0
HDMI connector type	Mini
Ethernet LAN (RJ-45) ports	1
Scene modes	Portrait, Landscape (scenery)
Photo effects	Vivid
White balance	Auto, Cloudy, Flash, Fluorescent, Incandescent, Shade
Self-timer delay	2, 5, 10, 20 s
Camera file system	DCF 2.0, DPOF, Exif 2.3
Diopter adjustment (D-D)	-3 - 1
On Screen Display (OSD) languages	ARA, CHI (SIMPL), CHI (TR), CZE, DAN, DEU, DUT, ENG, ESP, FRE, ITA, JPN, KOR, NOR, POL, POR, RUM, RUS, SWE, THA, TUR, UKR
Power source type	Battery
Battery type	EN-EL18a
Product color	Black
Operating temperature (T-T)	0 - 40 °C
Cables included	AC, USB

Weight and Dimensions

Depth	90.5 mm
Width	160 mm
Height	156.5 mm
Weight	1180 g