Just ahead of CES, Nikon has unveiled its new big gun: the D4 DSLR. Featuring a 6.2-megapixel FX (full)-format CMOS sensor and an ISO range up to 204,800, the D4 is a professional grade low-light fighting machine. Notable upgrades to 2009′s D3S—in addition to the 7.3-micron pixels sensor and mega ISO range—include: a 3.2-inch 921K dot LCD screen; a time lapse shooting feature that combines a selected frame rate and shot interval in a dedicated time lapse photography menu with playback speeds from 24x to 36,000x; and full HD video recording (1080p at 30 or 24fps and 720p at 60 fps). Additionally, using B-Frame data compression allows you to record H.264 / MPEG-4 AVC format video for up to 20 minutes per clip.
The Nikon D4 will be available for $5999.95 in February and is compatible with all 50+ lenses in the NIKKOR optics system.