Type: Single-lens reflex digital cameraLens mount: Nikon F mount (with AF coupling and AF contacts)Effective pixels: 16.2 millionImage sensor: 36.0 x 23.9 mm CMOS sensor (Nikon FX format)Total pixels: 16.6 millionDust-reduction system: Image sensor cleaning, Image Dust Off reference data (requires optional Capture NX 2 software)Dual card slots: Either card can be used for primary or backup storage or for separate storage of NEF (RAW) and JPEG images; pictures can be copied between cardsFile system: DCF (Design Rule for Camera File System) 2.0, DPOF (Digital Print Order Format), Exif (Exchangeable Image File Format for Digital Still Cameras) 2.3, PictBridgeViewfinder: Eye-level pentaprism single-lens reflex viewfinderShutter Type: Electronically-controlled vertical-travel focal-plane shutterSpeed: 1/8,000 to 30 s in steps of 1/3, 1/2 or 1 EV, bulb, X250Flash sync speed: X=1/250 s; synchronizes with shutter at 1/250 s or slowerSelf-timer: 2 s, 5 s, 10 s, 20 s; 1 to 9 exposures at intervals of 0.5, 1, 2 or 3 sMetering: TTL exposure metering using RGB sensor with approx. 91K (91,000) pixelsFocus point: Can be selected from 51 or 11 focus pointsLive View Modes: Live view photography (quiet or silent), movie live viewMovie Metering: TTL exposure metering using main image sensorISO sensitivity: Automatically adjusted in the range ISO 200 to 12800 or ISO 200 to Hi 4Monitor: 8-cm (3.2-in.), approx. 921k-dot (VGA) TFT LCD with 170 viewing angle, approx. 100% frame coverage, and automatic monitor brightness control using ambient brightness sensorBattery: One Rechargeable Li-ion Battery EN-EL18Dimensions(W x H x D): Approx. 160 x 156.5 x 90.5 mmWeight: Approx. 1,340 gPackage Content:1 Nikon D4 Digital SLR Camera1 Rechargeable Li-ion Battery EN-EL181 Battery Charger MH-261 USB Cable UC-E151 Camera Strap AN-DC71 Body Cap BF-1B1 Accessory Shoe Cover BS-21 Eyepiece DK-171 Battery Chamber Cover BL-61 USB Cable Clip1 ViewNX 2 CD-ROM