DIGIC 5 processor is six times faster than DIGIC 4 and DIGIC 5+ is three times faster than DIGIC 5, the Canon EOS 5D Mark II has a DIGIC 4 processor, Canon EOS 7D uses two separate processors, working in parallel dual DIGIC 4 processors.The New Canon S100, PowerShot G1 X both of them have a DIGIC 5, and the Canon EOS-1D X features dual DIGIC 5+ processors.
The EOS-1D X sensor has a 16-channel, dual line readout, compared to the 8-channel, single line design in the previous generation of chips. So 1D X have more pipes to get data from sensor, you get 12fps in RAW+JPEG mode and 14-bit color on every image and ISO 100 to 51,200 (standard ISO range) on the EOS-1D X — without any ISO expansion applied.
Canon 1D X vs Nikon D4 Specification comparison review, read more details below Buy Nikon D4 from Amazon Buy Canon 1D X from Amazon Nikon D4 with More shooting modes: With Canon 1D X you can use Canon EF lenses only, but with Nikon D4 you can use DX and FX lenses, Nikon D4 offers four image area options: FX format (36.0 x 23.9 mm), 5:4 crop (29.9 x 23.9 mm), 1.2x crop (29.9 x 19.9 mm) and DX format (23.4 x 15.5 mm). The camera also offers three image area options for Full HD video thereby tripling its potential for moviemaking.
About the Sensor: Nikon D4 features 16.2 megapixels Full frame (36 x 23.9 mm) CMOS Sensor and Canon 1D X 18.1 megapixels Full frame (36 x 24 mm) CMOS Sensor , the EOS-1DX’s photodiodes are 21% larger than those in the 1Ds Mark III.
ISO performance:
Nikon D4
Canon 1D X
ISO Standard
100-12,800
100-51,200
ISO Expandable
50-204,800
50 – 204,800
According to the specification, for low light situation Canon 1D X is better, you get two extra stops of Standard ISO range.
Auto Focus
Nikon D4
Canon 1DX
Autofocus
Number of focus points 51
Number of focus points 61
Cross-Type Points
15
41 (5 diagonal)
AF Sensor compatible with Apertures
f/8
f/5.6
AF Engine
Multi-CAM 3500FX (same as D3)
DIGIC IV
Predictive tracking
Yes
Yes
Auto focus Points: The number of AF points and Cross/Type points canon wins, the Canon 1D X features 41 AF cross type points and 5 of the center points are oriented diagonally for faster AF performance.
Update: With the Latest Firmware Update Canon 1DX Now Support F8 Lenses– see details here
AF Points compatible with Apertures
Canon 1D X is disappointing to many extender users.AF is unavailable on the EOS-1D X when lenses with a maximum aperture of f/8 are used.
In Nikon D4 11 focus points are fully functional when lenses with a maximum aperture of f/8 are used. Five central focus points and three points to the left and right of them in the middle line are compatible with f/8. This enables very precise focus acquisition with sports photography and the like when super-telephoto NIKKOR lenses are used with a teleconverter (2.0x) at a combined aperture value of f/8.
F8 Lens: adding a 1.4x extender to an f/5.6 max aperture lens results in an f/8 max aperture lens or adding a 2x extender to an f/4 max aperture lens results in an f/8 max aperture lens.
AF Engine: Canon 1D X AF system uses dedicated Digic 4 processor , EOS-1D X’s comes with 61-point Area AF system that includes 41 cross-type sensors and 5 dual-cross type AF points for extra precision.
Nikon D4 features same (old) AF engine used in D3 DSLR – Multi-CAM 3500FX autofocus sensor handles 51 AF points, aligns its 15 cross-type sensors in the central viewfinder area to detect contrast in both vertical and horizontal lines for better AF performance.
Predictive tracking: Both features Predictive tracking Canon 1D X Predictive tracking is better, read the details below
Nikon D3 / D4 AF Engine Multi-CAM 3500FX capable of maintaining accurate focus even on a high-speed subject such as an F1 racing car traveling in excess of 300km/h.
However, simple predictive tracking AF does not provide maximum focusing performance for a subject that abruptly changes direction moving at high speed or a subject with low contrast moving randomly. To focus accurately on such a subject, the AF system must accumulate data of the locus of the subject’s movement using multiple focus areas so that appropriate judgment can be made.
Canon 1D X offers six presets for different shooting situations, Each of these presets can be adjusted for ‘Tracking sensitivity’
For faster predictive focus measurements so that the EOS-1D X can begin predictive tracking as soon as a subject begins to move.
Canon EOS-1D X AF mode presets, defined by subject behavior:
1. Versatile multi purpose
4. Subjects that accelerate or decelerate quickly
2. Continue shooting, ignore obstructions
5. Erratic Subject Movement
3. Instantly refocus suddenly with obstructions
6. Subjects that change speed and move erratically
Six preset Case studies
There are six AF ‘Case studies’ preset within the EOS-1D X
Case 1 is for general purpose shooting that provides accurate and fast focus across a wide range of shooting situations.
Case 2 is designed for situations where the subject may move away from the AF point momentarily.
Case 3 allows you to instantly focus on subjects that enter the AF point area.
Case 4 is designed for subjects that change speed or direction rapidly.
Case 5 is designed for use with automatic AF point selection, Zone AF and AF Point expansion and subjects that move erratically, up and down or left and right.
Case 6 is for subjects that change speed abruptly and move erratically. Like ‘Case 5’ it is used with Automatic AF point selection, Zone AF and AF Point Expansion.
Continuous shooting
Nikon D4
Canon 1D X
exposure and focusing is locked with the first frame
Continuous shooting
11 fps
14 fps
1DX that wins in the shooting speed, you get 3 extra frame per second in canon.
Video Shooting
Nikon D4
Canon 1D X
Video Shooting Format
MPEG-4 / H.264
MPEG-4 / H.264
Video Resolutions
1920 x 1080 (30, 25, 24 fps), 1280 x 720 (60, 50, 30, 25 fps), 640 x 424 (30, 25 fps)
1920 x 1080 (30, 25, 24 fps, 1280 x 720 (60, 50 fps), 640 x 480 (60, 50 fps)
Video ISO Range
200-204800
100-51200
Both Canon 1DX and Nikon D4 captures Full HD movie @ 30, 25, 24 fps, but with Nikon you get more options such use of expandable ISO range in video shooting and you can record 1,920 x 1,080/30p Full HD and HD movies in three formats that are FX-, DX-based and 1,920 x 1,080 crop movie format.
Storage: 1DX coming with two slots of high-speed UDMA 7 Compact Flash cards, D4 also comes with two slots one for UDMA 7 and the other slot for the new XDC card format.
Price: Nikon D4 cost $800 less than the Canon 1D X.
Conclusion: Canon 1DX have more advance core specification than the Nikon D4, But Nikon D4 is more versatile and Canon 1D X have some limitations.
Canon 1 DX offers more advance AF system, Canon used dedicated DIGIC IV processor as AF engine and Dual DIGIC5+ image processor for image processing, you also get two extra stops of Standard ISO range.
But, AF is unavailable on the EOS-1D X when lenses with a maximum aperture of f/8 are used. (ex adding a 1.4x extender to an f/5.6 max aperture lens results in an f/8 max aperture)
Nikon D4 used same AF engine as used D3 and only single core Expeed 3 processor is used for processing images, But Nikon D4 is more versatile, It offers crop mode still and video shooting and you canon use FX and DX lenses in D4. No F8 issue, In Nikon D4 11 focus points are fully functional when lenses with a maximum aperture of f/8 are used. Nikon D4 offers iPad and iPhone wireless shooting capability, you also get a new slot for new memory card format (XQD).
Buy Nikon D4 from Amazon Buy Canon 1D X from Amazon
Canon 1D X announced, the canon 1D X features A newly-developed full-frame 18.1 Megapixel CMOS sensor offers exceptional flexibility, ISO range of 100-51200, expandable up to 204800, new 61-point wide-area autofocus system , 41 cross-type points, including five dual cross-type points, The EOS-1D X also features a newly-designed RGB metering system, providing incredible levels of accuracy. A 100,000 pixel RGB metering sensor is linked to the AF system and powered by its own dedicated DIGIC 4 processor, detecting faces and colour to ensure correct exposure levels and improved AF tracking.
EOS-1D X is the first-ever camera to feature dual “DIGIC 5+” processors. Offering performance up to three times faster than standard DIGIC 5. The 1D X also offers 12fps continuous shooting at14fps in Super High speed shooting with continuous bursts of up to 120 large JPEG images (36 RAW).
The camera records Full HD at 1920 x 1080 in selectable frame rates of 24p (23.976), 25p, or 30p (29.97); and 720p HD or SD video recording at either 50p or 60p (59.94). SD video can be recorded in either NTSC or PAL standards.
This camera also features Dual Card Slots, a new shutter design with even greater durability and precision. Rated to 400,000 cycles.
WFT-E6 – a new, compact WiFi transmitter designed for transferring images when a wired connection isn’t available. Supporting the 802.11n WiFi standard and offering Bluetooth support for connectivity to external GPS devices, the WFT-E6 offers secure transfer of images and video to an FTP server, or the ability to display content on a compatible screen over a DLNA[4] connection.
The EOS-1D X will also be compatible with a new GPS receiver – the GP-E1. Enabling users to add location information to EXIF data and geographically track the progress of travelling shoot, the GP-E1 is particularly useful for wildlife or location-based photographers who may need to record the location of a scene for future reference.
Things to be noted:
The 1DS + 1D = 1D X
1Ds series, which delivers exceptionally high image quality, and the 1D series, which achieves superlative high-speed performance. Integrating the strengths of these two series, Canon’s new professional flagship model, the EOS-1D X, brings together the highest levels of image quality and speed performance.
Dual DIGIC 5+
The 1D X features Dual DIGIC 5+ image processors, The two new high-performance DIGIC 5+ image processors—each realizing approximately 17 times the processing power of DIGIC 4.
Canon 1D X ISO Performance Compared with the EOS-1D Mark IV’s
EOS-1D Mark IV’s sensitivity range of ISO100–12800, the EOS-1D X offers a range that has been expanded by two steps, to 100–51200
High-speed continuous shooting of up to approximately 12 frames per second with high-precision AE and AF performance.
The newly developed AF system incorporates an AF sensor with a total of 61 autofocus points for improved high-precision subject capture. The sensor includes 21 f/5.6 cross-type sensors, 20 f/4.0 cross-type sensors, and 5 f/2.8 dual cross-type sensors. Equipped with 20 f/4.0 AF points, the new camera offers the same level of precision as the EOS-1D Mark IV at f/2.8. Additionally, working in tandem with the new AE system, the camera’s EOS iTR AF (Intelligent Tracking and Recognition Auto Focus) function is capable of tracking a subject’s face or target color to maintain focus on a moving subject.
The new EOS-1D X comes equipped with a Gigabit-Ethernet connection that, when shooting in locations equipped with a wired LAN connection such as large sporting arenas, enables data to be transferred to editing desks quickly and reliably.
Pricing and Availability
The Canon EOS-1D X Digital SLR camera is scheduled for March 2012 availability and will be sold in a body-only configuration at an estimated retail price of $6,800.00. The compact, lightweight WFT-E6A Wireless File Transmitter is scheduled to be available in March 2012 and have an estimated retail price of $600. Availability for the GP-E1 GPS receiver is expected in April 2012 with an estimated retail price of $300.
Canon 1D X Detail Specification
18.1MP Full Frame CMOS Sensor
ISO 100-51200 – expandable to ISO 50 (L), 102400 (H1), 204800 (H2)
14-bit RAW Capture w/ M-RAW at 10MP & S-RAW at 4.5MP
Video Capture: 1920 x 1080 at 30p/25p/24p; 1280 x 720 at 60p/50p
SMPTE-compliant timecode embedding
Max continuous record time of 29 minutes and 59 seconds
12 fps w/ AE and AF
14 fps JPEG only w/ mirror up
Dual DIGIC 5+ Image Processors
3.2″ LCD at 1.04 million dot resolution
252-zone metering
100,000-pixel RGB metering sensor
61-Point High Density Reticular AF including 41 cross-type AF Points
New canon 1D X Pro DSLR camera specification and press release leaked by canonrumors, Read the specification of New Canon Canon 1D X Full Frame camera.
Specifications
Canon EOS-1D X
Full Frame
18.1MP
Dual DIGIC 5+ – 17 Times The Processing Power of DIGIC 4
ISO 100-51200 Native
100,000 Pixel RGB Metering Sensor
EOS iSA (Intelligent Subject Analysis)
61 Point AF
21 f/5.6 Cross Type Sensors
20 f/4 Cross Type Sensors
5 f/2.8 Cross Type Senors
EOS iTR AF (Intelligent Tracking & Recognition Auto Focus)
12 Frames Per Second
14 Frames Per Second JPG Only
400,000 Shot Rated Shutter
Ethernet Connection
March Availability
Things to be noted:
The 1DS + 1D = 1D X
1Ds series, which delivers exceptionally high image quality, and the 1D series, which achieves superlative high-speed performance. Integrating the strengths of these two series, Canon’s new professional flagship model, the EOS-1D X, brings together the highest levels of image quality and speed performance.
Dual DIGIC 5+
The 1D X features Dual DIGIC 5+ image processors, The two new high-performance DIGIC 5+ image processors—each realizing approximately 17 times the processing power of DIGIC 4.
Canon 1D X ISO Performance Compared with the EOS-1D Mark IV’s
EOS-1D Mark IV’s sensitivity range of ISO100–12800, the EOS-1D X offers a range that has been expanded by two steps, to 100–51200
High-speed continuous shooting of up to approximately 12 frames per second with high-precision AE and AF performance.
The newly developed AF system incorporates an AF sensor with a total of 61 autofocus points for improved high-precision subject capture. The sensor includes 21 f/5.6 cross-type sensors, 20 f/4.0 cross-type sensors, and 5 f/2.8 dual cross-type sensors. Equipped with 20 f/4.0 AF points, the new camera offers the same level of precision as the EOS-1D Mark IV at f/2.8. Additionally, working in tandem with the new AE system, the camera’s EOS iTR AF (Intelligent Tracking and Recognition Auto Focus) function is capable of tracking a subject’s face or target color to maintain focus on a moving subject.
The new EOS-1D X comes equipped with a Gigabit-Ethernet connection that, when shooting in locations equipped with a wired LAN connection such as large sporting arenas, enables data to be transferred to editing desks quickly and reliably.
EOS-1D X, Canon’s new flagship digital SLR camera, scheduled to go on sale in late March 2012.
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DIGIC 5 processor is six times faster than DIGIC 4 and DIGIC 5+ is three times faster than DIGIC 5, the Canon EOS 5D Mark II has a DIGIC 4 processor, Canon EOS 7D uses two separate processors, working in parallel dual DIGIC 4 processors.The New Canon S100, PowerShot G1 X both of them have a DIGIC 5, and the Canon EOS-1D X features dual DIGIC 5+ processors.
The EOS-1D X sensor has a 16-channel, dual line readout, compared to the 8-channel, single line design in the previous generation of chips. So 1D X have more pipes to get data from sensor, you get 12fps in RAW+JPEG mode and 14-bit color on every image and ISO 100 to 51,200 (standard ISO range) on the EOS-1D X — without any ISO expansion applied.
The
Canon 1D X announced, the canon 1D X features A newly-developed full-frame 18.1 Megapixel CMOS sensor offers exceptional flexibility, ISO range of 100-51200, expandable up to 204800, new 61-point wide-area autofocus system , 41 cross-type points, including five dual cross-type points, The EOS-1D X also features a newly-designed RGB metering system, providing incredible levels of accuracy. A 100,000 pixel RGB metering sensor is linked to the AF system and powered by its own dedicated DIGIC 4 processor, detecting faces and colour to ensure correct exposure levels and improved AF tracking.
EOS-1D X is the first-ever camera to feature dual “DIGIC 5+” processors. Offering performance up to three times faster than standard DIGIC 5. The 1D X also offers 12fps continuous shooting at14fps in Super High speed shooting with continuous bursts of up to 120 large JPEG images (36 RAW).
WFT-E6 – a new, compact WiFi transmitter designed for transferring images when a wired connection isn’t available. Supporting the 802.11n WiFi standard and offering Bluetooth support for connectivity to external GPS devices, the WFT-E6 offers secure transfer of images and video to an FTP server, or the ability to display content on a compatible screen over a DLNA[4] connection.
New canon 1D X Pro DSLR camera specification and press release leaked by 
