The Next Chapter of EOS.
Offering a comprehensive combination of speed, accuracy and image quality, the EOS-1D Mark IV is the perfect choice for professional photographers and subjects on the move. With a completely redesigned 45-point AF system including 39 cross-type points, a new AI Servo II AF focus tracking system with improved algorithm combined with 10 fps continuous shooting, the EOS-1D Mark IV can handle even high-speed situations with ease. An APS-H sized 16.1 Megapixel CMOS Sensor, Dual DIGIC 4 Image Processors, a spectacular ISO range of 100 - 12800 (up to 102400 in H3 mode) with an advanced noise reduction system helps ensure sharp, low-noise images even in low-light situations. Add advanced Live View shooting, Full HD movie recording with selectable frame rates and manual exposure control plus a host of new features that enhance every facet of the shooting process. The EOS-1D Mark IV is the choice of professionals looking for the ultimate in SLR performance.

Professionally Proven, High-Speed AF. New 45-point Area AF sensor including 39 cross-type AF points with f/2.8 support plus new AI Servo II AF with improved algorithm.
The EOS-1D Mark IV has a newly developed, high-precision Area AF sensor with 45 manually selectable points including 39 cross-type, high-precision AF points for exacting and fast focusing no matter the subject. New AI Servo II AF focus tracking features improved algorithms that help improve stability, reliability and focus no matter the situation. Whether shooting a fast-paced soccer game or shooting a close-up of a bee on a wind-blown flower during macro photography, AI Servo II AF helps ensure sharp focus every time. AF point selection has been improved as well. Photographers can select their own point through either the cameras Multi-controller or Main Dial/Quick Control Dial. Automatic selection is as simple as the press of a button. With Custom functions, photographers can select their own default focus point to automatically switch between horizontal and vertical shooting and can even choose to have primary focus supported by adjacent focus points for more accuracy with moving subjects.

ISO 100 - 12800 (expandable to L: 50, H1: 25600, H2: 51200, H3: 102400) for shooting from bright to dim light with low noise levels.
The EOS-1D Mark IV features a standard ISO range from 100 - 12800 with an expanded range of 50 to 102400! The combined noise reduction capabilities of the Dual DIGIC 4 Image Processors and Canon CMOS sensor help ensure that even at an ISO setting of 102400, noise is kept to a minimum. This greatly expanded capability provides an increased range of real-world shooting options, especially in available-light or dim situations. A low ISO speed can be useful, for example, when shooting high contrast scenes with fast (e.g., f/1.4) lenses. Blown highlights, such as the shading of a brides dress, can be avoided and photographers can use wider apertures to control depth-of-field in ways not possible at higher ISO settings. Additionally, the EOS-1D Mark IV features the Auto Lighting Optimizer (ALO), which automatically adjusts the brightness and contrast during image processing to minimize the need for expensive and time-consuming post-production processing. Auto Lighting Optimizer is available in most shooting modes, including Manual mode and can be applied to RAW images using the included Canon Digital Photo Professional software.

EOS HD movie with manual exposure control and multiple frame rates (1080: 30p (29.97) / 24p (23.976) / 25p, 720: 60p (59.94) / 50p, 480: 60p (59.94) / 50p).
The EOS-1D Mark IV captures video with all the benefits of shooting with an EOS digital SLR. The HD recording area on the EOS-1D Mark IV is approx. 27.9mm x 15.7mm, similar when compared to the 24.89 x 18.65mm recording area of Super 35 motion picture film. By shooting video with a large sensor camera, photographers as well as videographers can take advantage of the creative features native to SLR photography. Along with its manual controls, the EOS-1D Mark IV allows for full use of Canon EF lenses, including wide angle, macro, super-telephoto, tilt-shift lenses and fisheye, providing a wealth of depth-of-field and other creative shooting options once reserved only for still photography. The resulting HD video is a standout in its stunning depth-of-field characteristics, remarkable capture capability under poor lighting conditions with its vast ISO range, and deep clean blacks with nearly undetectable noise.

When shooting HD video in AE modes, the EOS-1D Mark IV employs Center-Weighted average metering to help ensure stable motion-picture exposure with the camera automatically selecting the ISO speed, shutter and aperture. Full manual exposure control is also available while shooting video when the camera is set to Manual mode.

Video can be captured at 1920 x 1080 resolution at frame rates of 24 (23.976), 25 or 30 (29.97) frames per second, for up to 4GB per clip. Movies are saved as MOV files and can be viewed in Full HD with HDMI output. Other recording sizes include HD at 1280 x 720 (50/60 (59.94) fps) or SD/VGA at 640 x 480 (50/60 (59.94) fps). The EOS-1D Mark IV has a built-in microphone for simple mono recording and stereo sound can be recorded through a self-powered external microphone.

16.1 Megapixel APS-H CMOS sensor and Dual DIGIC 4 Image Processors for high image quality and speed.
The EOS-1D Mark IV features a high-resolution APS-H sized 16.1 Megapixel CMOS sensor (with a focal length multiplier effect of 1.3x) and Dual DIGIC 4 Image Processors that can process images at full resolution continuously up to 10 frames-per-second. The combination of the CMOS sensor and Dual DIGIC 4 Image Processors help to ensure smooth, detailed and refined images that are recorded quickly, accurately and reliably. This impressive combination of speed, quality and performance will make the EOS-1D Mark IV a staple among many professional photographers, including sports photographers, and a familiar sight on the sidelines of professional sporting events.

10.0 fps continuous shooting up to 121 Large JPEGS or 28 RAW using a UDMA CF card.
spacer The EOS-1D Mark IVs rugged, high-speed shutter can shoot up to 10.0 frames per second (fps) for up to 28 consecutive RAW files or 121 full-resolution JPEGs when used in conjunction with UDMA (Ultra Direct Memory Access) Mode 6 CF cards. The EOS-1D Mark IVs spectacular new 45-point high-speed AF sensor locks on and maintains focus, ensuring that the camera keeps up with its amazing shutter.

3.0-inch ClearView II LCD monitor, 160 viewing angle, 920,000-dot VGA, reflection resistance with multi coating and high-transparency materials for bright and clear viewing.
The EOS-1D Mark IV features the finest Canon LCD screen to date (October 2009): the new, high-resolution, 3.0-inch ClearView II VGA LCD has 920,000 dot resolution and provides a new level of clarity and sharpness with a 160 angle of view. Its performance is admirable, not only in confirming focus and composition, but in composing and shooting in Live View mode, or when shooting video. It features a tempered glass protective cover with an anti-reflective film and a new resin filling between the actual LCD and glass cover that helps minimize internal reflections and further improves visibility in bright viewing situations. During image playback, pressing the illumination button displays an LCD brightness screen, so brightness can be adjusted quickly and easily.

Magnesium alloy body with shutter durability up to 300,000 cycles and exclusive dust- and weather-resistance.
A lightweight and incredibly strong magnesium alloy construction helps the EOS-1D Mark IV to endure almost any condition, and the EOS-1D Mark IV features a shutter designed to shoot 300,000 cycles. All the EOS-1D Mark IVs controls, buttons and external covers are dust- and water-resistant, ensuring uninterrupted operation whether shooting in the rain, in a windstorm and everything in between. Dust is managed with the advanced Canon EOS Integrated Cleaning System, which helps to suppress dust generation, removes existing dust and uses the combination of Dust Delete Data and DPP software to eliminate any remaining dust spots on your images. When the EOS-1D Mark IV is used with a dust- and water-resistant EF lens or external Speedlite, the entire camera system is nearly impervious to the elements.

Fully compatible with over 50 EF lenses and a wide range of EOS System accessories.
The EOS-1D Mark IV is compatible with all Canon lenses in the EF lineup (excluding EF-S lenses), ranging from ultra-wide angle to super telephoto lenses. Canon lenses employ advanced optical expertise and micron-precision engineering to deliver outstanding performance in nearly all facets of the photographic process. Special optical technologies, such as aspherical optics and fluorite elements, are featured in the widely acclaimed L-Series lenses, and Canon Image Stabilizer technology in select lenses helps to minimize the effect of camera shake. Through Canon lenses, photographers can truly maximize the quality and liberating performance of the 1D Mark IV.

Flash Photography
The EOS-1D Mark IV features the acclaimed E-TTL II flash metering system. With any of the flashes in the EX Speedlite line, E-TTL II provides reliable flash output whether shooting fill-in flash pictures in sunlight, or using flash in total darkness. The camera's new 63-zone Evaluative Metering Sensor is also used for flash metering with an improved flash metering algorithm which reduces the chances of overexposure with wide-angle shots in which the main subject occupies a small area. If you prefer a broader area for flash metering, Custom Function II-4-1 allows shifting flash metering so that all 63 zones of the sensor are used equally to calculate flash exposures.

The Speedlite 580EX II is perfectly suited to the EOS-1D Mark IV. It has improved reliability of communications through the direct contacts, has a metal flash "foot," and is dust-/water-resistant as with the 1D Mark IV. Other new features include a PC socket on the flash unit, and an external metering sensor for non-TTL autoflash if desired. With the EOS-1D Mark IV, you can set most flash settings using the cameras menu. It has the same power as the previous Speedlite 580EX (maximum guide number of 190 ft./58m at ISO 100) and, when mounted on the camera, automatically compensates for the cameras sensor size, enabling high output flash, with more flashes per charge. It includes an AF-assist Beam, which works in conjunction with the EOS-1D Mark IVs focusing system, and automatically sends color temperature information to the camera when the flash fires, for more accurate white balance rendition with flash photography.