The Nikon D4 is a 16.2-megapixel professional-grade full frame (35mm) digital single-lens reflex camera (DSLR) announced by Nikon Corporation on 6 January 2012.[2] It succeeds the Nikon D3S and introduces a number of improvements including a 16.2 megapixel sensor, improved auto-focus and metering sensors and the ability to shoot at an extended ISO speed of 204,800.[3] The camera was released in February 2012 at a recommended retail price of $5999.95.[3] It is the first camera to use the new XQD memory cards. It was replaced by the Nikon D4S as Nikon's flagship camera.
 | |
| Overview | |
|---|---|
| Type | Digital single-lens reflex camera |
| Released | 5 January 2012 |
| Lens | |
| Lens | Interchangeable, Nikon F-mount |
| Sensor/medium | |
| Sensor | 36.0 mm × 23.9 mm CMOS, Nikon FX format, 7.3µm pixel size |
| Sensor maker | Nikon[1] |
| Maximum resolution | 16.4 effective megapixels (4928 × 3280 pixels) |
| Film speed | ISO equivalency 100 to 12,800 in 1/3, 1/2 or 1.0 EV steps, Boost: 50–204,800 in 1/3, 1/2 or 1.0 EV steps |
| Storage media | One CompactFlash (Type I) card slot, one XQD card slot |
| Focusing | |
| Focus modes | Auto AF-S/AF-C selection (AF-A), Continuous-servo (AF-C), Face-Priority AF available in Live View only and D-Movie only, Full-time Servo (AF-A) available in Live View only, Manual (M) with electronic rangefinder, Normal area, Single-servo AF (AF-S), Wide area |
| Focus areas | 51-area Nikon Advanced Multi-CAM 3500FX |
| Focus bracketing | none |
| Exposure/metering | |
| Exposure modes | Programmed Auto [P], Shutter-Priority Auto [S], Aperture-Priority Auto [A], Manual [M] |
| Exposure metering | TTL exposure metering using 91,000-pixel RGB sensor |
| Metering modes | Center-weighted: Weight of 75% given to 12mm circle in center of frame; Matrix: 3D color matrix metering III (type G and D lenses); color matrix metering III (other CPU lenses) ;Spot: Meters 4 mm circle (about 1.5% of frame) centered on selected focus point |
| Flash | |
| Flash | none built-in |
| Flash bracketing | 2-9 frames in steps of 1/3, 1/2, 2/3 or 1 EV |
| Shutter | |
| Shutter | Electronically controlled vertical-travel focal-plane shutter |
| Shutter speed range | 30 to 1/8000 second and bulb |
| Continuous shooting | 10 frame/s (11 frame/s with AE/AF lock on first frame) |
| Viewfinder | |
| Viewfinder | Optical-type fixed eye level pentaprism |
| Image processing | |
| White balance | Auto, Presets (5), Manual, and Color temperature in kelvins |
| WB bracketing | 2 to 9 exposures in increments of 1, 2 or 3 EV |
| General | |
| LCD screen | 3.2-inch diagonal, (921,000 dots), TFT VGA |
| Battery | Li-ion EN-EL18 |
| Optional battery packs | EH-6B AC Adapter |
| Weight | 1,180 g (2.60 lb) |
| Made in |  Japan |
| Chronology | |
| Predecessor | Nikon D3S |
| Successor | Nikon D4S |
The Nikon D4 is aimed at sports and action photographers and photojournalists. With a continuous shooting rate of 10fps, a 20-second burst would yield 200 full-resolution images with full metering and autofocus for each frame. If exposure and focus are locked, the shooting rate can be increased to 11fps.
The D4 achieved the fourth-best result in the DXOmark sensor rating, only beaten by two versions of the Nikon D800 and a medium format, 80-megapixel camera (Phase One IQ180).[4]
