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 4mm circle (about 1.5% of frame) centered on selected focus point
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
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. 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. The camera was released in February 2012 at a recommended retail price of $5999.95. It is the first camera to utilize the new XQD memory cards.
According to Kenrockwell, the Nikon D4 proffessional camera toppled Nikon D800 and Canon EOS 5D Mark III for sports and action photography. With 10fps for 20 seconds, we can get 200 full-resolution images in a burst mode with full metering and autofocus for each frame and furthermore we can make 11fps with locked focus and exposure.
0.12 s start up time and 0.042 s shutter release delay.
Image sensor cleaning
Ten frames per second in continuous FX mode (eleven frames per second with auto-exposure and auto-focus disabled)
Buffer for 100 RAW or 200 JPEG frames in one burst
Built-in HDR and time lapse modes
Built-in 10/100 base-T Ethernet port for data transfers and tethered shooting.
1080p Full HD movie mode at 24 fps worldwide and 25 or 30 depending on region, 720p at 25/50 or 30/60 fps, HDMIHD video out with support of uncompressed video output, stereo monitor headphone out, and stereo input (3.5-mm diameter) with manual sound level control.
Kevlar/carbon fibre composite shutter with a rating of 400,000 actuations
Live View with either phase detect or improved contrast detect Auto Focus
Virtual horizon indicates in Live View mode, also available during video capture
'Active D-Lighting' with 6 settings and bracketing (adjusts metering and D-Lighting curve)
Dual card slots, one CompactFlash UDMA and one XQD card slot (mirror, overflow, back-up, RAW on 1/JPEG on 2, Stills on 1/Movies on 2, copy)
Fully weather sealed with O-rings
GPS interface for direct geotagging supported by Nikon GP-1