Nikon D4

{{short description|Digital single-lens reflex camera}}

{{Infobox camera

| model = Nikon D4

| image = D4-85 1.4.JPG|

| kind = Digital single-lens reflex camera

| sensor = 36.0 mm × 23.9 mm CMOS, Nikon FX format, 7.3µm pixel size

| res = 16.4 effective megapixels (4928 × 3280 pixels)

| price = $5999.95

| sensor_maker = Nikon[https://www.chipworks.com/about-chipworks/overview/blog/full-frame-dslr-cameras-part-i-nikon-vs-sony Full Frame DSLR Cameras Part I - Nikon vs Sony] {{Webarchive|url=https://web.archive.org/web/20190521000732/http://www.chipworks.com/about-chipworks/overview/blog/full-frame-dslr-cameras-part-i-nikon-vs-sony |date=2019-05-21 }} Chipworks

| lens = Interchangeable, Nikon F-mount

| shutter = Electronically controlled vertical-travel focal-plane shutter

| shutterRange = 30 to 1/8000 second and bulb

| metering = TTL exposure metering using 91,000-pixel RGB sensor

| emode = Programmed Auto [P], Shutter-Priority Auto [S], Aperture-Priority Auto [A], Manual [M]

| mmode = 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

| farea = 51-area Nikon Advanced Multi-CAM 3500FX

| fmode = 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

| cont = 10 frame/s (11 frame/s with AE/AF lock on first frame)

| viewfinder = Optical-type fixed eye level pentaprism

| speedRange = 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

| flash = none built-in

| flbkt = 2-9 frames in steps of 1/3, 1/2, 2/3 or 1 EV

| fcbkt = none

| WB = Auto, Presets (5), Manual, and Color temperature in kelvins

| wbbkt = 2 to 9 exposures in increments of 1, 2 or 3 EV

| rearLCD = 3.2-inch diagonal, (921,000 dots), TFT VGA

| storage = One CompactFlash (Type I) card slot, one XQD card slot

| battery = Li-ion EN-EL18

| weight = {{convert|1180|g|lb|abbr=on}}

| obp = EH-6B AC Adapter

| date = 5 January 2012

| made_in = {{JPN}}

| predecessor = Nikon D3S

| successor = Nikon D4S

}}

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.{{cite web|url=http://www.nikon.com/news/2012/0106_flagship_01.htm |title=Digital SLR Camera Nikon D4|publisher=Nikon Corporation|date=January 6, 2012| access-date=January 7, 2012}} 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.{{cite web|title=Nikon announces D4 DSLR camera: full-frame 16.2 MP sensor, 204,000 extended ISO, XQD support, $6,000 price tag|url=https://www.engadget.com/2012/01/05/nikon-d4-dslr-camera/|work=Engadget|access-date=6 January 2012}} The camera was released in February 2012 at a recommended retail price of $5999.95. It is the first camera to use the new XQD memory cards. It was replaced by the Nikon D4S as Nikon's flagship camera.

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.