Up for sale is Nikon D3X in excellent condition (less than 3,000 actuations). Though quiet a few years on the market, this camera remains Nikon's D series unit with highest megapixel CMOS sensor capability. The camera is built like a tank in Japan.

Product Highlights
  • 24.5MP FX-Format CMOS Sensor
  • EXPEED Image Processor
  • 3.0" 920k-Dot LCD Monitor
  • Multi-CAM 3500FX 51-Point AF Sensor
  • Native ISO 1600, Extended to ISO 6400
  • Continuous 5 fps Shooting
  • 1005-Pixel 3D Color Matrix Metering II
  • 14-Bit Raw Files
  • Dual CF Memory Card Slots

The Nikon D3x SLR Digital Camera provides incredibly high resolution images, with superb performance, and boasts an array of refinements that enhance performance and improve the user experience. Such features include, Super-high Resolution, the Nikon EXPEED image processor that powers the cameras high performance and its Scene Recognition System, refined viewfinder performance with a Virtual Horizon Indicator; a large LCD with a wide viewing angle and that can provide Live View Shooting, significantly increased battery life; and a wide range of firmware enhancements.

At the heart of the system is a 24.5MP FX-format CMOS Sensor, producing high quality images that can be captured in JPEG, TIFF or raw file formats at a rate of up to five frames per second at full resolution. The powerful advanced image-processing engine and optimized systems blend high levels of resolution with superb image quality, pure color rendition and the Picture Control System with four setting options (Standard, Neutral, Vivid, Monochrome), and class-leading speed. The 51 point AF system is tuned to deliver even finer precision and higher performance, and an improved view in High-speed Crop mode makes composition easier. The host of enhancements also includes significantly increased battery life per charge, an improved menu interface, and a high density 3.0-inch LCD with ultra-wide viewing angle.

The camera is built from a rugged, and durable magnesium-alloy, which is strong yet lightweight, is fully protected against dust, moisture and electromagnetic interference, while the ergonomically designed body makes camera operation simple. The D3x maximizes the potential of Nikon's Creative Lighting System, delivering high-precision flash performance including i-TTL flash control, which support for Nikon's Advanced Wireless Lighting system. The EN-EL4a rechargeable lithium-ion battery provides enough power to support shooting of up to 4,400 images on a single charge, can be recharged at any time and features a handy 'fuel gauge', which displays remaining charge by percentage, the number of shots since last charge and overall battery status. And with Dual CF card slots users can easily manage files with overflow, backup and copy options.

24.5 Megapixel FX-Format CMOS
The FX-Format (35.9 x 24.0mm) CMOS sensor Just about covers the full frame area of 35mm film, and uses large 5.49 micron pixels to capture an incredible 24.5MP effective resolution with astonishing detail and subtleties with outstanding dynamic range for demanding commercial applications
Extensive Selection of Compatible NIKKOR Lenses
The Nikon F lens mount assures unprecedented compatibility with the expanding family of digital dedicated DX NIKKOR lenses as well as Nikon's comprehensive lineup of AF/AF-S Nikkor lenses long favored by professionals for their outstanding auto focus performance, superb color, high contrast and smooth rendition of out of focus areas in backgrounds
High-performance Image Processing Engine
Nikon's advanced EXPEED image processing engine combines color independent analog pre-conditioning with improved digital image processing algorithms. This innovative system delivers images with a natural and appealing look that benefit from faithful color reproduction and realistic transitions between areas of different color and tone—even when using high ISO Sensitivity levels
12-Bit or 14-Bit A/D Conversion
Users can select either 12-bit or 14-bit color with both yielding incredible image quality. The camera then utilizes a 16-bit processing pipeline, for smoother tonal gradations and a resulting file size of 138MB per image. Users can also select a JPEG file format for smaller compressed images, a fully bitmapped TIFF file format and even a combines raw + JPEG file for greater versatility
Picture Control Settings
Nikon's Picture Control System makes it easy for users of all experience levels to select and apply adjustments to how their pictures are rendered and create optimized settings to suit their individual preferences. The Picture Control System offers four basic setting options—Standard, Neutral, Vivid and Monochrome, that can be directly customized with image parameters, such as sharpening, tone compensation, brightness and saturation. Furthermore, users can store up to nine customized options or export up to 99 to a CF memory card, enabling photographers to share settings among multiple cameras
Exclusive Scene Recognition System (SRS)
The Nikon Scene Recognition System uses the acclaimed Nikon 1005-pixel RGB color sensor modified to recognize subjects' shape and position before the image is captured. This also aids the Autofocus system, while enhancing the accuracy of the auto exposure, i-TTL control and white balance metering
1,005-pixel 3D Color Matrix Metering II
Nikon's exclusive light metering technology intelligently evaluates numerous elements beyond simple brightness and compares its findings against an onboard database of reference images. Complex and otherwise time-consuming exposures are determined instantly, resulting in consistent and dependable digital imaging exposures
Wide Range of ISO Sensitivity
The camera has a broad ISO range from 100-1600 plus expanded sensitivity settings with a Lo-1 (equivalent to ISO 50), Hi-1 (equivalent to ISO 3200) and Hi-2 (equivalent to 6400) sensitivity settings. The camera produces images with low noise at all ISO Settings thanks to the combination of the large sensor size and the efficient EXPEED Processor
Fast Performance
The D3x can support continuous shooting up to 5 frames per second - even at full resolution, making it a powerful performer for a wide variety of shooting disciplines, particularly for action sports, wildlife, or news gathering applications. It also provides fast power-up, quick responsiveness, and outstanding timer and shutter flexibility to meet the needs of a wide variety of photographic assignments
Fast, Accurate 51-point Autofocus
The 51-point AF system with Nikon's 3D Focus Tracking can be selected to use groups of 51, 21 or 9 points and provides an AF System with incredible speed and precision. It delivers full AF performance with any NIKKOR lens with an aperture of f/5.6 or faster
3.0" Color LCD Display
The 3.0-inch super density 921,000-dot VGA color monitor provides a crisp clear view of your images with 170-degree wide-angle viewing and tempered-glass protection making critical image review possible. The camera also includes an information display on the rear LCD screen that can change color according to the ambient lighting conditions, and an easy-to-view top LCD panel
Live View Feature
The D3x includes the Live View system, which presents photographers with a live image on the LCD screen, with two modes suited to either hand held or tripod shooting. The Live View system is particularly useful when shooting in a studio, utilizing remote shooting or when shooting from challenging angles
Tripod & Hand-held Live View Modes
The Tripod Mode is ideal for photographic applications that require precise focus and composition, such as still life, architecture and macro photography. In this mode, the contrast-detect AF system provides exceptionally accurate focusing from any point in the entire frame so you can easily rearrange your subject while simultaneously confirming your composition, or confirm your focus by enlarging the focus point image up to 13 times. For low- and high-angle compositions where you're unable to look through the viewfinder, the Hand-held Mode can be a tremendous assistance - letting you select your focus point or use Auto-area AF, then use the Live View LCD with its 170-degree viewing angle for composing your shot
Electronic Virtual Horizon
The innovative Virtual Horizon provides instant, accurate confirmation of the D3x's position relative to horizontal level. When using Live View, you can choose to display the virtual horizon on the LCD, a feature ideal for landscape and architecture photography. You can also level the D3x while looking through the viewfinder using the convenient analog scale
Rugged & Durable Design
Housed in a lightweight yet highly durable magnesium alloy body, the D3x is built to perform reliably under the tough working conditions of professional photographic assignments. Nikon's enhanced sealing system protects every possible seam and exposed part, making the body resistant to dust and drops of water. The camera also has an incredibly reliable shutter mechanism that has been tested to perform for up to 300,000 cycles
Dual CF Card Slots
With two CompactFlash card slots, users can more effectively manage their images right on the camera. The user has several different options as to how the two cards are utilized such as using the second slot for overflow or backup, separating raw and JPEG files when capturing both types simultaneously or even copy files from one card to the other to share files amongst photographers, editors, clients etc.
Long Life Battery
The Powerful EN-EL4a Rechargeable Li-ion Battery provides up to 4,400 images per battery charge lets you shoot up to 4,400 frames per charge (CIPA standard) thanks to intelligent power management, and the available battery power is simple to monitor right in the info display of the camera

Nikon D3X specs

Imaging
Lens Mount Nikon F
Camera Format Full-Frame (1.0x Crop Factor)
Pixels Actual: 25.72 Megapixel
Effective: 24.5 Megapixel
Max Resolution 24.3 MP: 6048 x 4032
Aspect Ratio 3:2, 4:5
Sensor Type / Size CMOS, 35.9 x 24 mm
File Formats Still Images: JPEG, RAW, TIFF
Bit Depth 14-Bit
Dust Reduction System Yes
Memory Card Type CompactFlash
Focus Control
Focus Type Auto & Manual
Focus Mode Manual Focus (M), Single-servo AF (S)
Autofocus Points 51
Viewfinder/Display
Viewfinder Type Pentaprism
Viewfinder Eye Point 18.00 mm
Viewfinder Coverage 100%
Viewfinder Magnification Approx. 0.7x
Diopter Adjustment -3 to +1 m
Display Screen 3" Rear Screen LCD (921,000)
Diagonal Angle of View 170.0°
Exposure Control
ISO Sensitivity 100-1600 (Extended Mode: 50-6400)
Shutter Type: Electronic
Speed: 30 - 1/8000 Seconds 
Remote Control ML-3, MC-21A, 22, 22A, 23A, 25A, 30, 30A, 36 & 36A (Optional)
Mirror Lock-Up Yes
Metering Method 3D Color Matrix Metering, Center-Weighted Average Metering, Spot Metering
Exposure Modes Modes: Aperture Priority, Manual, Program, Shutter Priority
Compensation: -5 EV to +5 EV (in 1/3 EV Steps)
Buffer/Continuous Shooting Up to 5 fps at 24.5 MP
Up to 7 fps at 10.5 MP
White Balance Modes Auto, Cloudy, Daylight, Flash, Fluorescent, Fluorescent (Day White), Fluorescent (Natural White), Fluorescent (White), Fluorescent H, Incandescent, Kelvin, Manual, Preset Manual, Shade
Flash
Flash Modes First-Curtain Sync
Red-Eye Reduction
Second-Curtain Sync
Slow Sync
Slow Sync/Red-Eye Reduction
Built-in Flash No
Max Sync Speed 1 / 250 Second
Flash Compensation Not specified by manufacturer
External Flash Connection Hot Shoe, PC Terminal
AV Recording
Video Recording No
Performance
Self Timer 2 Seconds, 5 Seconds, 10 Seconds, 20 Seconds
Interval Recording Yes
Connectivity NIkon 10-Pin
AV Output
HDMI C (Mini)
USB 2.0
Software System Requirements Windows: XP, Vista
Mac: OS X 10.3.9 or later
Power
Battery 1 x EN-EL4a/EL4 Rechargeable Lithium-Ion Battery Pack
AC Power Adapter EH-6 AC Adapter (Optional)
Operating/Storage Temperature Operating
32 to 104°F (0 to 40°C)
Humidity: 0 - 85%
Physical
Dimensions (W x H x D) 6.3 x 6.2 x 3.4" / 16.0 x 15.7 x 8.6 cm
Weight 2.65 lbs / 1.20 kg
Packaging Info
Package Weight 6.55 lb
Box Dimensions (LxWxH) 11.0 x 8.5 x 6.3"