Recording to an optional external recorder is possible in order to gain an uncompressed video signal via the HDMI port and, when recording externally, use of the camera s LCD monitor for live view monitoring is possible. Additionally, simultaneous recording to both memory cards and an external recording device is also possible for instant backing up and duplicating of files. 2MP still images can also be recorded simultaneously during video recording.

51-Point Advanced Multi-CAM 3500FX AF Sensor

Supporting the exceptional imaging capabilities of the D4S is an apt autofocus system that employs up to 51 distinct points, with options available to use 9, 21, or all 51 points depending on the situation. 3D Tracking, as part of the intelligent Scene Recognition System, also works to benefit maintained focusing on moving subjects for greater accuracy when shooting at high continuous shooting speeds.

For even faster initial focusing and subject recognition, five AF sensors can be used together as a single focus point with the Group Area AF setting. Furthermore, Single-point AF, Dynamic-area AF (with 9, 21, or 51 points selectable), 3D-tracking (using all 51 points), and Auto-area AF modes are also available.

When working in live view, for either still or movie shooting, a contrast-based AF system is employed to acquire focus precisely and can function in continuous, full-time servo mode to better-suit working with moving subjects. Four distinct AF-area modes are available when using the contrast-detection focusing method: Face-priority AF, Wide-area AF, Normal-area AF, and Subject-tracking AF.

Scene Recognition System and Exposure Metering

The intelligent Scene Recognition System with 3D Color Matrix Metering III utilizes a 91,000-pixel RGB sensor to evaluate and analyze all aspects within a scene, including brightness, contrast, subject distance, and the scene colors, to quickly determine an accurate exposure and white balance setting to best render the scene at hand. The information gathered is also checked against onboard reference images to ensure consistency from image to image in regard to exposure, white balance, i-TTL flash settings, and subject-tracking AF performance.

Camera Design Features

• A 3.2 921k-dot LCD monitor is available as a large means for live view monitoring, image playback, and menu navigation. Additionally, monitor color settings can be manually adjusted to match external monitors or other color balance requirements.
• Both a CompactFlash and an XQD card slot are available to extend file saving capabilities by permitting either overflow recording or in-camera file duplicating. Additionally, optional HDMI-connected external recorders are supported for recording uncompressed video and time lapse sequences.
• The ergonomic grip and overall form factor are shaped to benefit handling for extended periods of time and are further accentuated by anti-slip, textured joysticks and easy-to-open card slot covers. Additionally, most of the rear buttons on the rear of the camera are illuminated for greater visibility when working in dim lighting conditions.
• The durable magnesium alloy body features extensive weather sealing to protect the camera from dust, moisture, and electromagnetic interference.
• A highly durable shutter has been tested to 400,000 cycles and works in concert with an enhanced mirror balancer for better visibility and reduced mirror vibration when working in high-speed continuous shooting modes.
• The included EN-EL18a rechargeable lithium-ion battery pack provides up to approximately 3,020 shots per charge (in single-frame mode, based on CIPA standards).

• Connectivity and Image Transferring

  • The built-in wired LAN function of 1000 Base-T (Gigabit) standard enables high-speed, seamless transferring of still imagery and movie files for expediting an entire post-production workflow.
  • For wireless file transferring, the D4S is compatible with the optional WT-5A and WT-4A Wireless Transmitters.

  • Other Camera Features

    • An enhanced interval timer permits recording up to 9,999 frames with intervals as long as one week. Recording can be done directly to memory cards, to an optional external recorder, or to both media types simultaneously. Furthermore, exposure smoothing and flicker reduction benefit time lapse playback for more seamless, fluidly-rendered movies.
    • RAW (NEF) files can be recorded as lossless compressed or compressed at either 12 or 14-bit depth. Additionally, files can be saved in the RAW SIZE S format to help expedite one s workflow while still maintaining the image quality-related assets of the RAW format.
    • When working in live view, FX, DX and 2.7x image area modes are available.
    • When shooting with the viewfinder, a custom setting permits toggling Face Detection on or off depending on the exposure metering bias desired.
    • Auto ISO sensitivity control allows you to select a minimum shutter speed at which camera shake can be controlled from and then will automatically set the ISO value in order to best render the scene. A maximum sensitivity level can also be set in order to maintain overall noise levels.
    • Spot White Balance control for live view shooting makes setting the white balance as easy as pointing to the area in the frame that should be white. Additionally, 1-6 preset white balance settings can be stored for easier switching between different light sources.
    • Picture Control modes allow you to set predefined looks to imagery in-camera and include Landscape, Monochrome, Neutral, Portrait, Standard, Vivid, and user-customizable settings.
    • Playback functions: Auto Image Rotation, Full-Frame and Thumbnail (4, 9, or 72 images or calendar), GPS data display, Highlights, Histogram Display, Image Comment , IPTC information embedding and display, Movie Playback, Movie Slideshow, Photo Information, Playback with Zoom, Slideshow, and Voice Memo.
    • In-camera image editing: Color Balance, D-Lighting, Distortion Control, Edit Movie, Filter Effects, Image Overlay, Monochrome, NEF (RAW) Processing, Perspective Control, Red-Eye Correction, Re-size, Side-by-Side Comparison, Straighten, and Trim.

    • Imaging
      Lens Mount		Nikon F
      Camera Format		Full-Frame (1.0x Crop Factor)
      Pixels		Actual: 16.6 Megapixel
      Effective: 16.2 Megapixel
      Max Resolution		16.2MP: 4928 x 3280
      Aspect Ratio		3:2, 4:5, 16:9
      Sensor Type Size		CMOS, 36.0 x 23.9 mm
      File Formats		Still Images: JPEG, RAW, TIFF
      	Movies: MOV, MPEG-4 AVC H.264
      Audio: Linear PCM
      Bit Depth		14-bit
      Dust Reduction System		Yes
      Memory Card Type		CompactFlash
      XQD
      Focus Control
      Focus Type		Auto & Manual
      Focus Mode		Automatic (A), Continuous-servo AF (C), Full-time Servo (F), Manual Focus (M) , Single-servo AF (S)
      Autofocus Points		Phase Detection: 51
      Viewfinder Display
      Viewfinder Type		Pentaprism
      Viewfinder Eye Point		18.00 mm
      Viewfinder Coverage		100%
      Viewfinder Magnification		Approx. 0.70x
      Diopter Adjustment		– 3 to +1 m
      Display Screen		3.2  Rear Screen   LCD (921,000)
      Screen Coverage		100%
      Diagonal Angle of View		170.0°
      Exposure Control
      ISO Sensitivity		100-25600 (Extended Mode: 50-409600)
      Shutter		Type: Electronic & Mechanical
      Speed: 30 – 1 8000 sec, Bulb Mode
      Remote Control		MC-37, 36A, 30A, 25A, 23A, 22A, 21A, DC2, ML-3, WR-T10, 10, A10, 1, (Optional)
      Mirror Lock-Up		Yes
      Metering Method		3D Color Matrix Metering, Center-weighted average metering, Spot metering
      Exposure Modes		Modes: Aperture Priority, Manual, Programmed Auto, Shutter Priority
      	Metering Range: EV -1.0 – EV 20.0
      Compensation: -5 EV to +5 EV (in 1 3, 1 2 or 1 EV steps)
      White Balance Modes		Auto, Cloudy, Color Temperature, Direct Sunlight, Flash, Fluorescent, Incandescent, Preset Manual, Shade
      Flash
      Flash Modes		1st Curtain Sync
      	Hi-Speed Sync
      	Off
      	Rear Curtain Slow Sync
      Rear Sync
      Red-eye Reduction
      Slow Sync
      Slow Sync Red-eye Reduction
      Max Sync Speed		1 250 sec
      Flash Compensation		-3 EV to +1 EV (in 1 3, 1 2 or 1 EV steps)
      Dedicated Flash System		iTTL
      External Flash Connection		Hot Shoe, PC Terminal
      AV Recording
      Video Recording		Yes, NTSC PAL
      File Size		1920 x 1080p (Full HD)
      Aspect Ratio		16:09
      Frame Rate		@ 1920 x 1080: 60 fps, 50 fps, 30 fps, 25 fps, 24 fps
      	@ 1280 x 720: 60 fps, 50 fps
      @ 640 x 424: 30 fps, 25 fps
      Exposure Control		Manual: Shutter Speed, Aperture, ISO
      Auto: ISO
      ISO Sensitivity		Auto Manual, 200 – 25600, Expandable to 409600
      Focus		Auto
      	Manual
      Continuous Auto
      Video Clip Length		1920 x 1080
      29 min. 59 sec.
      Audio Recording		Built-in Mic: With Video + Voice Memo, Mono
      Optional External Mic: With Video + Voice Memo, Stereo
      Performance
      Continuous Shooting		Up to 11 fps
      Self Timer		2 sec, 5 sec, 10 sec, 20 sec
      Interval Recording		Yes
      Connectivity		1 8 Headphone, 1 8 Microphone, HDMI C (Mini), NIkon 10-Pin, USB 2.0, X-Sync Socket
      Wi-Fi Capable		Yes (with Optional Transmitter)
      Power
      Battery		1x EN-EL18a  Rechargeable Lithium-Ion Battery Pack, 10.8VDC, 2500mAh
      AC Power Adapter		EH-6b (Optional)
      Operating Storage Temperature		Operating
      	32 to 104°F (0 to 40°C)
      Humidity: 0 – 85%
      Physical
      Dimensions (WxHxD)		6.3 x 6.2 x 3.6    160.0 x 156.5 x 90.5 mm
      Weight		2.65 lb   1.20 kg

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