" D3X from Nikon " A digital Masterpiece

• Extreme resolution 24.5-megapixel FX-format (35.9 x 24.0mm) CMOS sensor
  Large 5.94µm pixels capture astonishing detail and subtleties with outstanding dynamic range for demanding commercial applications.
• Nikon EXPEED image processing technologies
  EXPEED extends and assures breathtakingly rich image fidelity and reduces noise, even at high ISOs.
• 138 MB¹ Processed NEF (RAW) 12 or 14 bit image files
  Selectable bit depths of 12-bit (4,096 tones) or 14-bit (16,384 tones), both yielding incredible image quality through a 16-bit processing pipeline, for smoother tonal gradations.
  
  ¹ Approximate
• Low noise ISO sensitivity from 100 to 1600
  Added ISO settings of Lo-1 (ISO 50 equivalent), Hi-1 (ISO 3200 equivalent) and Hi-2 (ISO 6400 equivalent) extend versatility.
• Two Live View shooting modes
  Two Live View modes add flexibility, and up to 27x magnification in the Tripod Mode, acute focusing accuracy is easily confirmed.
• Continuous shooting at up to 5 fps at full FX-format resolution
  Commercial image quality teams with speed and handling to create new shooting possibilities—in the studio or on location.
• Fast, accurate 51-point AF system
  AF system features 4 Dynamic AF modes, including 3D Focus Tracking, for autofocus precision and razor sharpness.
• 1,005-Pixel 3D Color Matrix Metering II with Scene Recognition System
  Two Nikon-exclusive technologies provide intelligent auto exposure capabilities, along with refined auto white balance detection and faster, more accurate AF performance.
• 3-inch super-density 920,000-dot VGA LCD monitor
  Individual factory calibration assures the color accuracy of each D3X monitor for critical image review.
• 100% viewfinder coverage
• Nikon Picture Control
  Four preset options: Standard, Neutral, Vivid and Monochrome, and 9 customizable settings provide advanced, personalized color control.
• Rugged, durable and precise magnesium-alloy construction
  Effectively protected from invasive dust, moisture and electromagnetic interference with a self-diagnostic shutter mechanism tested to exceed 300,000 cycles.
• Dual CF card slots with overflow, backup and copy options
• Virtual Horizon Graphic Indicator
• Up to 4,400 images per battery charge

source : http://www.nikonusa.com/Find-Your-Nikon/Product/Digital-SLR/25442/D3X.html