• New 16.1 Megapixel APS-H CMOS sensor
• 10 frames per second continuous shooting
• Up to 121 large JPEG images in a single burst
• New 45-point wide area AF with 39 cross-type sensors with f/2.8 sensitivity
• High-speed Dual DIGIC 4 processors for superb image quality
• 12,800 high ISO expandable up to 102,400
• Full HD movie recording at 30, 25 and 24 frames per second
• 3-inch Clear View II LCD with Live View mode
• Durable dust and water resistant body with 76 rubber seals
• Compatible with all Canon EF lenses, and Speedlite EX flashes
• Compatible with the new EOS 1D Mark IV Wireless Transmitter WFT-E2 II (also compatible with existing Wireless File Transmitter WFT-E2)

IMAGE SENSOR
Type 27.9mm x 18.6mm CMOS
Effective Pixels Approx. 16.10 megapixels
Total Pixels Approx. 17.00 megapixels
Aspect Ratio3.2
Low-Pass Filter Built-in/Fixed
Sensor Cleaning EOS integrated cleaning system with fluorine coating
Colour Filter Type Primary Colour

IMAGE PROCESSOR
Type Dual "DIGIC 4"

LENS
Lens Mount EF (excludes EF-S lenses)
Focal Length Equivalent to 1.3x the focal length of the lens

FOCUSING
Type TTL-AREA-SIR with a dedicated CMOS sensor
AF System/ Points 45 Point f/2.8 (39 f/2.8 cross-type)
AF working range EV -1 - 18 (at 23°C & ISO100)
AF Modes One ShotAI Servo
AF Point Selection Automatic selection: 45 point AFManual selection: Single point AF (45, 19, 11 or 9 points selectable)Manual selection: Spot AF (with compatible lens)Manual selection: AF point Expansion (Left right,surround, all 45)AF points can be selected separately for vertical and horizontal shooting
Selected AF point display Superimposed in viewfinder
Predictive AF 1 Yes, up to 8m
AF Lock Locked when shutter button is pressed half way in One Shot AF mode or AF-ON button is pressed
AF Assist Beam Emitted by optional dedicated Speedlite
Manual Focus Selected on lens, default in Live View Mode
AF Microadjustment C.Fn III-7 +/- 20 stepsAdjust all lenses by same amountAdjust up to 20 lenses individually

EXPOSURE CONTROL
Metering modes TTL full aperture metering with 63 zone SPC(1) Evaluative metering (linked to all AF point)(2) Partial metering (approx. 13.5% of viewfinder at centre)(3) Spot metering: Center spot metering (approx. 3.8% viewfinder AF point-linked spot metering (approx. 3.8% of viewfinder) Multi/Spot metering (Max 8 spot metering entries)
Metering Range EV 0 - 20 (at 23°C with 50mm f/1.4 lens ISO100)
AE Lock Auto: In One-shot AF mode with evaluative metering exposure is locked when focus is achievedManual: By AE lock button in P, TV and AV modes
Exposure Compensation +/-3 EV in 1/3 or 1/2 stop increments (can be combined with AEB)
AEB 2, 3, 5 or 7 Shots +/-3 EV 1/3 or 1/2 stop increments
ISO Sensitivity 2 Auto (100-12800), 100-12800 (in 1/3-stop or whole stop increments) ISO can be expanded to L: 50, H1: 25600, H2: 51200, H3 102400

SHUTTER
Type Electronically-controlled focal-plane shutter
Speed 30-1/8000 sec (1/2 or 1/3 stop increments) + Bulb (Shutter speed range available varies according to shooting mode)

WHITE BALANCE
Type Auto white balance with the imaging sensor
Settings AWB, Daylight, Shade, Cloudy, Tungsten, WhiteFluorescent light, Flash, Custom, Colour Temperature SettingWhite balance compensation: 1. Blue/Amber +/-92. Magenta/ Green +/-9
Custom White Balance Yes, 5 setting can be registered
WB Bracketing +/-3 levels in single level increments3 bracketed images per shutter releaseSelectable Blue/Amber bias or Magenta/ Green bias

VIEWFINDER
Type Pentaprism
Coverage (Vertical/Horizontal) Approx. 100%
Magnification Approx. 0.76x 3
Eyepoint Approx. 20mm (from eyepiece lens centre)
Dioptre Correction -3 to +1 m-1 (dioptre)
Focusing Screen Interchangeable (12 types, optional). Standard Focusing Screen Ec-C IV
Mirror Quick-return half mirror (Transmission: reflection ratio of 37:63, no mirror cut-off with EF1200mm f/5.6 or shorter)
Viewfinder Information AF information: AF points, focus confirmation lightExposure information: Metering mode, spot metering area, shutter speed, aperture, manual exposure, AE lock, ISO speed, exposure level, exposure warningFlash information: Flash ready, FP flash, FE lock, flash exposure levelImage information: JPEG recording, RAW recording, number of remaining shots, maximum burst (2 digit display), highlight tone priority(D+), White balance correction, memory card information, battery check icon
Depth of field preview Yes, with Depth of Field preview button
Eyepiece shutter Built in

LCD MONITOR
Type 3.0" Clear View II TFT, approx. 920K dots
Coverage Approx. 100%
Viewing Angle (horizontally/vertically) Approx. 160°
Coating Anti-reflection and Solid Structure
Brightness Adjustment Adjustable to one of seven levels
Display Options (1) Quick Control Screen(2) Camera settings

FLASH
Modes E-TTL II Auto Flash, Metered Manual
X-sync 1/300sec (EX series Speedlites only)
Flash Exposure Compensation +/- 3EV in 1/2 or 1/3 increments
Flash Exposure Bracketing Yes, with compatible External Flash
Flash Exposure Lock Yes
Second Curtain Synchronisation Yes
HotShoe/ PC terminal Yes/ Yes
External Flash Compatibility E-TTL II with EX series Speedlites, wireless multi-flash support
External Flash Control via camera menu screen

SHOOTING
Modes Program AE, Shutter priority AE, Aperture priority AE, Manual
Picture Styles Standard, Portrait, Landscape, Neutral, Faithful, Monochrome, User Defined (x3)
Colour Space sRGB and Adobe RGB
Image Processing Highlight Tone PriorityAuto Lighting Optimizer (4 settings)Long exposure noise reductionHigh ISO speed noise reduction (4 settings)Auto Correction of Lens Peripheral illumination
Drive modes Single, Continuous L, Continuous H, Self timer (2s+remote, 10s+remote), Silent single shooting
Continuous Shooting Max. Approx. 10fps. (speed maintained for up to 121 images (JPEG)4 or 28 images (RAW))5 (with UDMA card)

LIVE VIEW MODE
Type Electronic viewfinder with image sensor
Coverage Approx. 100% (horizontally and vertically)
Frame Rate 30 fps
Focusing Manual Focus (Magnify the image 5x or 10x at any point on screen)Autofocus: Quick mode, Live mode, Live Face detection mode
Metering Real-time evaluative metering with image sensorActive metering time can be changed
Display Options Grid overlay (x2), Histogram, Aspect ratios

FILE TYPE
Still Image Type JPEG: 10 compression options (Exif 2.21 [Exif Print] compliant) / Design rule for Camera File system (2.0),RAW: RAW, mRAW, sRAW (14bit, Canon original RAW 2nd edition),Digital Print Order Format [DPOF] Version 1.1 compliant
RAW+JPEG simultaneous recording Yes, any combination of RAW + JPEG possible, separate formats to separate cards possible
Image Size JPEG: (L) 4896x3264, (M1) 4320x2880, (M2) 3552x2368, (S) 2448x1632RAW: (RAW) 4896x3264, (M-RAW) 3672x2448, (S-RAW) 2448x1632
Movie Type MOV (Video: H.264, Sound: Linear PCM)
Movie Size 1920 x 1080 (29.97, 25, 23.976 fps)1280 x 720 (59.94, 50 fps)640 x 480 (59.94, 50 fps)
Movie Length Max duration 29min 59sec, Max file size 4GB
Folders New folders can be manually created and selected
File Numbering (1) Consecutive numbering(2) Auto reset(3) Manual reset

OTHER FEATURES
Custom Functions 62 Custom Functions with 177 settings
Metadata Tag User copyright information (can be set in camera)
LCD Panel / Illumination Yes / Yes
Water/ Dust resistance Yes
Sound Memo Up to 30sec per image
Intelligent Orientation Sensor Yes
Playback zoom 1.5x - 10x
Display Formats (1) Single image with information (2 levels) (2) Single image (3) 4 image index(4) 9 image index(5) Magnified view (6) Movie edit
Slide Show Image selection: All images, by Date, by Folder, Movies, StillsPlayback time: 1/2/3/5 secondsRepeat: On/Off
Histogram Brightness: Yes RGB: Yes
Highlight Alert Yes
Image Erase/Protection Erase: Single image, All images in folder, Checkmarked images, unprotected imagesProtection: Erase protection of one image at a time
Data Verification Original image verification data and encryption can be appended to the image (OSK-E3 required for verification + encryption/decryption)
Menu Categories (1) Shooting menu (x2)(2) Playback menu (x2)(3) Setup menu (x3)(4) Custom Functions menu(5) My Menu
Menu Languages 25 LanguagesEnglish, German, French, Dutch, Danish, Portuguese, Finnish, Italian, Norwegian, Swedish, Spanish, Greek, Russian, Polish, Czech, Hungarian, Romanian, Ukrainian, Turkish, Arabic, Thai, Simplified Chinese, Traditional Chinese, Korean and Japanese
Firmware Update Update possible by the user

INTERFACE
Computer Hi-Speed USB
Other HDMI mini output, Video output (PAL/ NTSC), Extension system terminal (for WFT-E2/ WFT-E2 II), External microphone (Stereo mini jack)

DIRECT PRINT
Canon Printers Canon Compact Photo Printers and PIXMA Printers supporting PictBridge
PictBridge Yes

STORAGE
Type CompactFlash Type I/ II (Microdrive compatible, UDMA compatible), SDHC, SD memory (up to 2GB), External Media (with Wireless File Transmitter WFT-E2 and WFT-E2 II only)
PC & Macintosh Windows XP (SP2/SP3) / Vista inc SP1 (excl. Starter Edition)OS X v10.4-10.5

SOFTWARE
Browsing & Printing ZoomBrowser EX / ImageBrowser
Image Processing Digital Photo Professional
Other PhotoStitch, EOS Utility (inc. Remote Capture, WFT utility*, Original Data Security Tools*), Picture Style Editor* Requires optional accessory

POWER SOURCE
Batteries Rechargeable Li-ion Battery LP-E4 (supplied), 1xCR2025 for date & settings
Battery life Approx. 1500 (at 23°C)6Approx. 1200 (at 0°C)
Battery Indicator 6 levels + percentage
Power saving Power turns off after 1, 2, 4, 8, 15, 30mins or Off.
Power Supply & Battery Chargers AC Adapter Kit ACK-E4, Battery charger LC-E4, Car Battery charger cable CG-570 (use with LC-E4)

PHYSICAL SPECIFICATIONS
Body Materials Magnesium Alloy body covers
Operating Environment 0 – 45 °C, 85% or less humidity
Dimensions (WxHxD) 156 x 156.6 x 79.9mm
Weight (body only) Approx. 1180g

ACCESSORIES
Viewfinder Eyecup Eg, Eg-series Dioptric Adjustment Lens with Rubber Frame Eg, Anti Fog Eyepiece Eg, Focusing Screens Ec, Angle Finder C
Wireless File Transmitter Wireless File Transmitter WFT-E2*, WFT-E2 II
Lenses All EF lenses (excludes EF-S lenses)
Flash Canon Speedlites (220EX, 270EX, 380EX, 420EX, 430EX, 430EX II, 550EX, 580EX, 580EX II, Macro-Ring-Lite, MR-14EX, Macro Twin Lite MT-24EX, Speedlite Transmitter ST-E2)
Remote Controller/ Switch Remote control with N3 type contact, Wireless Controller LC-5
Other Original Data Security Kit OSK-E3, Hand Strap E1

All data is based on Canon standard testing methods except where indicated. Subject to change without notice.
1 With EF300mm f/2.8L IS USM at 50kph
* Firmware update required
2 Recommended Exposure Index
3 With 50mm lens at infinity, -1m-1 dpt
4 Large resolution JPEG quality setting 8
5 Based on Canon's testing conditions, JPEG, ISO 100, Standard Picture Style
6 Based on the CIPA Standard

Canon CMOS sensor

Designed by Canon and working in combination with the company’s DIGIC processors, Canon’s CMOS technology integrates advanced noise reduction circuitry at each pixel site delivering virtually noise-free images. In comparison with CCD technology, the lower power consumption characteristics of Canon’s CMOS sensors also contribute to longer battery life.

Signal conversion in Canon’s CMOS sensors is handled by individual amplifiers at each pixel site. Unnecessary charge transfer operations are avoided, vastly speeding up the process of getting signal to the image processor. Noise generation is reduced, power consumption is limited and faster frame rate potential is increased.

The architecture of the EOS-1D Mark IV sensor has been refined in order to derive maximum light efficiency and natural colour reproduction. Despite a smaller pixel size, optimised, more sensitive photodiodes, with higher signal to noise (S/N) ratios and larger capacities, allow more optical information to be gathered and transferred to the Dual DIGIC 4 processors. This enables high ISO speeds, low noise, and a wide dynamic range to be achieved.

Additional features to reduce noise and support higher ISO speeds include:

* gapless microlenses, which have been moved closer to the photodiode to maximise the sensor’s light-gathering ability

* the circuit for applying high gain suppresses noise from outside the sensor itself

AI Servo II

AI Servo AF uses a form of irtificial Intelligence (AI) to determine the speed and direction of moving subjects, then focuses the camera lens to a predicted position (Focus Prediction function) to increase the probability of obtaining a sharp photograph.

Realising the importance of AI Servo in today’s high speed cameras, the

EOS-1D Mark IV autofocus system has been improved and is capable of accurately tracking a variety of subjects travelling at a variety of different speeds and distances. Tracking and focusing on macro subjects has been enabled through faster processing.

The following AF features have been improved with AI Servo II:

Stable lens drive: In normal operation, the AI Servo algorithm makes calculations, and based on these results, instructs the lens to change focus position. Now, if the algorithm gets two results one after the other that are very different - for example, the subject changed direction rapidly and was not where the system expected it to be - this calculation is ignored and the system waits to instruct the lens until two results match. This means that errors generated no longer cause the lens to jump unexpectedly out of focus.

Secure focus tracking of a subject: If an obstacle is detected or if the AF point is not kept over the subject, tracking continues based on the last known trajectory result immediately before the interruption.

Moderate lens drive: If there is a radical change in focus distance, the lens is not driven straight to that value. It is slowly taken there based on past prediction results. This means that if a photographer drifts off the subject to the background for an extended period of time, the lens will not snap focus straight to the background. This in turn means that if the photographer gets the AF point back onto the subject that the lens is able to achieve sharp focus much more quickly.

Predictive control with quick response: The system is now able to achieve predictive focus immediately as the subject starts moving and there is no delay before it can start tracking.

Dual DIGIC 4 processors

Image information is processed by Canon’s Dual DIGIC 4 processors, purpose-built to complement the 16.1 MP CMOS sensor. The power of Dual DIGIC 4 enables more advanced processing algorithms to ensure precise, natural colours, accurate white balance and advanced noise reduction, as well as in-camera editing of EOS Movie clips filmed in full HD. The ultra-fast processing speeds raise the overall response rate of the camera operation and produce near-instant start-up times.

DIGIC chips work with a high-speed DDR-SDRAM image buffer – reading, processing, compressing and writing image data fast enough to keep the buffer clear during long continuous shooting bursts. The buffer of the EOS-1D Mark IV Dual DIGIC 4 processors has also been increased to support continuous bursts of up to 121 large JPEGs or 28 RAW files at 10fps, at full-resolution. In addition, as DIGIC 4 integrates all key processing functions, power consumption is kept to a minimum.

Working in tandem with Canon’s CMOS sensor, DIGIC 4 removes the highly-noticeable colour noise, as well as reducing luminance noise without loss in detail, allowing for very clean, high ISO images. Even at ISO 6400, noise levels are similar to those of ISO 1600 from DIGIC III. The Dual DIGIC 4 processors also support M-RAW and S-RAW image formats, commonly used by news desks, to maintain the benefit of RAW files whilst reducing file size.

Clear View II LCD

The 3-inch LCD monitor of the EOS 1D Mark IV has 920,000 dots (VGA resolution) with a viewing angle of 160 degrees. Clear View II has been designed to combat glare by removing the air gap between the LCD’s protective cover and the liquid crystal display. The air gap is filled with a photo-elastic material. This suppresses the reflections from the surface of the liquid crystal caused by the sharp change in refractive index as light travels through the air gap.

EOS Movie

The EOS Movie function allows EOS-1D Mark IV users to record 1080p HD movies with full manual control and selectable frame rates.

Thanks to the large size of the integrated CMOS sensor (28.1x18.7mm), photographers have greater ability to control depth-of-field. The exposure of the movie can be controlled in manual mode, allowing full control of shutter speeds and apertures. It is possible to select frame rates from: 30 (29.97), 25, and 24 (23.976), with 60 (59.94) and 50 available at resolutions of 720p. Program mode also allows photographers to easily shoot HD video without worrying about exposure settings– ideal when needing to capture split-second action as it unfolds.

Picture Styles

Picture Style presets simplify in-camera control of image qualities. Picture Style presets can be likened to different film types – each one offering a different colour response. Within each selectable preset, photographers have control over sharpness, contrast, colour tone and saturation. The camera’s factory default configuration is set to deliver immediately-usable JPEG images without need for additional menu settings. Picture Style presets applied to a RAW image can be revised with Canon’s Digital Photo Professional software.

The six presets are:

Standard – for crisp, vivid images that don’t require post-processing

Portrait – optimises colour tone and saturation and weakens sharpening to achieve attractive skin tones

Landscape – for punchier greens and blues with stronger sharpening to give a crisp edge to mountain, tree and building outlines

Neutral – ideal for post-processing

Faithful – adjusts colour to match the subject colour when shot under a colour temperature of 5200K

Monochrome – for black-and-white shooting with a range of filter effects (yellow, orange, red and green) and toning effects (sepia, blue, purple and green)

With the EOS-1D Mark IV, the Picture Style presets feature greater sharpening (for all presets excluding Faithful and Neutral), giving the photographer press-ready files straight from the camera.

Auto Lighting Optimizer

The Auto Lighting Optimizer (ALO) automatically corrects the image brightness and contrast for images suffering from underexposure, low contrast or backlit situations, assisted by face detection technology. With DIGIC 4's low-noise image processing and corrective algorithm, the correction is performed without affecting the natural gradation. Standard, Low, Strong, or Disable settings can be set and applied to the image.

With the EOS-1D Mark IV, the Auto Lighting Optimizer now works with manual exposure and bulb shooting. The correction is based on the exposure set by the user and is especially effective for backlit conditions when the subject looks dark. Typically, if the exposure is brightened for the subject, the background becomes overexposed. However, with the Auto Lighting Optimizer set and the picture taken so that the background is not overexposed, both the subject and background can be favorably exposed.

EOS Integrated Cleaning System

The EOS Integrated Cleaning System combats sensor dust in three important ways: Reduce, Repel and Remove.

Reduce - Internal camera mechanisms are designed to minimise dust generation. The redesigned body cap prevents dust generation through wear on the cap itself

Repel - Anti-static technologies, including a special fluorine coating, are applied to the low-pass filter covering the front of the sensor so as not to attract dust

Remove - A Self-Cleaning Sensor Unit uses hi-frequency vibrations to shake dust from the infrared filter for a period of approximately one second after each start up. For instant shooting after power up, this feature is disabled immediately the shutter release is depressed

Canon has also developed an internal Dust Delete Data system which can map the position of visible dust on the sensor. This can then be deleted automatically after the shoot with the latest Digital Photo Professional software.

Software

Digital Photo Professional software provides high speed, high quality processing of lossless RAW images. Processing with Digital Photo Professional allows real-time display and immediate application of image adjustments, giving control over RAW image variables such as white balance, dynamic range, exposure compensation, noise reduction and colour tone – plus the ability to view autofocus points on an image. The lens aberration correction tool allows precise correction of different types of distortion caused by certain cameras.

Images can be recorded in camera with sRGB or Adobe RGB colour space. Digital Photo Professional supports sRGB, Adobe RGB, ColorMatch RGB, Apple RGB and Wide Gamut RGB colour spaces. ICC (International Colour Consortium) profiles can be attached to TIFF or JPEG images when converted from RAW. This allows faithful reproduction of colours in software applications that support ICC profiles, such as Adobe Photoshop. For improved efficiency, a set of image adjustments can be saved as a recipe and applied.

EOS Utility provides essential support for Live View remote shooting, camera configuration and image transfers. Tightly integrated with Digital Photo Professional, EOS Utility can be configured to monitor ‘hot’ folders, automatically renaming and moving incoming images to a structured file system. Users can also tag their images with EXIF data, including copyright information.

Picture Style Editor allows photographers to create individual Picture Styles that meet their personal requirements. Each Picture Style contains detailed information on how specific colours should be represented within an image. Once new Picture Styles have been created, they can be uploaded directly into the camera and applied to JPEG or RAW images. When working with RAW files in DPP, both personal Picture Styles and predetermined Picture Styles can all be adjusted.

20 October 2009

Fast, powerful, high resolution performance for professional photographers

Canon has announced the launch of the EOS 1D Mark IV – a high-speed, professional digital SLR (DSLR) camera designed to empower photographers to capture split-second moments in high resolution, under the most challenging of conditions.

Ideal for shooting action, sports, news events and wildlife photography, the Canon EOS 1D Mark IV delivers speed, power and high-resolution images, creating the perfect camera for photographers who require reliability in fast-paced, high-pressure situations.

Developed incorporating feedback from professional photographers, the EOS 1D Mark IV features a new Canon 16.1MP APS-H CMOS sensor and a brand new 45-point autofocus (AF) system with 39 f/2.8 sensitive cross-type points, providing a wide selection of precise focus areas across the frame. Dual DIGIC 4 processors provide the power to shoot continuous, high-resolution images at up to 10 frames per second (fps), as well as delivering the widest ISO range ever to feature in a Canon camera.

 “Throughout the devekopment of the EOS 1D Mark IV we’ve carefully studied feedback from our photographers and developed a camera to meet their specific requirements,” said Mr. Shinbori, Senior General Manager of Camera Development Center, Canon Inc. “With a brand new, high-quality CMOS sensor and Dual DIGIC 4 processors, the Canon EOS 1D Mark IV allows photographers to be the first to get the highest quality images to picture desks in what is becoming an increasingly competitive market.”.

Highly sensitive, cross-type focusing – capture every detail at speed

The Canon EOS 1D Mark IV features a completely new 45-point AF system, with 39 f/2.8 sensitive cross-type points located across the frame, providing consistent AF on static or moving subjects, no matter which AF point is being used. All 45 AF points are user-selectable and now more sensitive, with the AF points towards the edge of the frame offering identical levels of performance to those in the centre.

The entire AF system is managed by a dedicated microprocessor, providing fast, accurate focusing – even when shooting continuously at 10fps. Canon’s newly-evolved AI Servo II AF offers more precision when tracking moving objects, utilising the power provided by the dedicated microprocessor to improve overall tracking accuracy and increasing focus reliability in low-contrast and extremely bright conditions.

To provide increased flexibility, a vast range of manual and automatic AF control options are available including - with lenses featuring an AF Stop button - Canon’s new Spot AF feature. Spot AF offers a more precise focus area to meet the needs of photographers that require pinpoint focusing. A 63-zone metering system enables the use of multiple metering modes, with the dedicated sensor linked to the 45 AF points, providing AF point-linked and multiple spot metering options.

The EOS 1D Mark IV also features orientation-linked AF points - an orientation sensor-controlled feature that enables photographers to store separate AF points for different camera positions. Covering both horizontal and vertical shooting positions (both grip up and grip down), orientation linked AF points offers the flexibility to change camera orientation quickly when shooting, with the AF settings switching to suit the subject. AF point registration enables the photographer to store an alternate AF point that can be used at the touch of a button.

The power and performance of Dual DIGIC 4 and CMOS

The combination of a custom-designed, high-resolution 16.1MP APS-H CMOS sensor and Dual DIGIC 4 processors ensures that detailed, crisp images are delivered at high speeds.

The inclusion of an APS-H sensor combines a high pixel-count with an effective field-of-view measuring 1.3x the focal length of the lens. This provides immediate benefits for sports, news and wildlife photojournalists, who operate on-the-move and need to get closer to their subjects whilst maintaining fast apertures without resorting to longer focal-length lenses – which are typically heavier.

Continuous shooting is facilitated by the sensor’s eight-channel data read out, which provides a rapid read sequence and makes full use of the Dual DIGIC 4 processors to enable high-speed 10fps shooting at full 16.1MP resolution, while maintaining image colours through 14-bit analogue to digital (A/D) conversion.

The ability to shoot images at 10fps, without any drop in resolution, means the EOS 1D Mark IV features the fastest continuous shooting with autofocus currently available from a Canon DSLR. The increased processing capacity of Dual DIGIC 4 processors manages the increased data created by the 60% rise in image resolution, while still enabling the EOS 1D Mark IV to deliver a continuous burst of up to 121 large JPEGS, or 28 RAW images using a UDMA 6 card – ideal for fast-moving sporting action or news events where scenes are unfolding quickly.

EOS 1D Mark IV also includes updated Picture Styles and the first ever integration of ALO (Auto Lighting Optimizer) in a professional EOS body, automatically correcting the contrast and brightness of images as they are recorded. These features combine to provide a faster workflow for those requiring press-ready images direct from the camera without the need for retouching, enabling photographers to concentrate solely on capturing that once-in-a-lifetime shot.

Full compatibility with the latest UDMA 6 standard Flash memory cards also ensures that image data is rapidly written to the memory card of the EOS 1D Mark IV. In addition, the flexibility to record to a Secure Digital/SDHC memory card allows photographers to keep shooting for longer until they get the shot they need.

Advanced performance in low-light

The EOS 1D Mark IV also delivers extreme low-light performance. Standard ISO on the EOS 1D Mark IV ranges from 100 to 12,800, while extended ISO ranges from a low of 50 to 102,400 – the highest ISO ever offered by a Canon SLR. This extreme low-light performance makes the EOS 1D Mark IV ideal for night shots or shooting at evening events, where the lack of light would normally make shooting impossible.

Intelligent noise reduction techniques keep chroma and luminance noise to a minimum, while maintaining colour balance, but never take control of the overall image quality away from the photographer. The architecture of the new 16.1MP APS-H CMOS sensor, featuring gapless microlenses with less surrounding circuitry and more sensitive, high-capacity photodiodes, also ensures that all available light is used as efficiently as possible to maximise ISO performance in low-light conditions.

Built for extreme use – robust, weatherproof and portable

Light for its category, the EOS 1D Mark IV features a full magnesium alloy body, providing protection against knocks and bumps. The EOS 1D Mark IV has also been the subject of some subtle ergonomic redesigns, with the buttons reshaped and given a more defined ‘click’ when pressed, to make life easier for photographers operating in more extreme weather conditions where gloves may be necessary.

The EOS 1D Mark IV is protected by a total of 76 rubber seals fitted around the controls and cover seams, making the camera dust and water resistant when used in tandem with Canon’s range of weather-resistant EF lenses and Speedlite EX flash units.

The 920,000 dot, VGA resolution, Clear View II LCD makes it easy to instantly review images and video in the most challenging conditions. By filling the gap between the LCD panel and the protective cover screen with a photo-elastic material, Canon has been able to reduce light reflection, resulting in the clear display of images. The previously acrylic cover has also been replaced by reinforced glass, providing strong, scratch-resistant protection for the screen.

The EOS 1D Mark IV also features the EOS integrated cleaning system, which automatically eliminates dust on the sensor – ensuring reliable image quality when shooting in testing outdoor environments.

Cinematic, High Definition video

In addition to providing high-quality still image performance, the Canon EOS 1D Mark IV features EOS Movie function, providing the ability to capture 1080p High Definition (HD) video at 30, 25 and 24fps and 720p footage at 60 and 50fps. As well as complete compatibility with PAL, NTSC and native 1080/24p cinematic frame rates, the EOS 1D Mark IV offers full manual exposure, providing film makers and photographers with control over depth-of-field.

The EOS 1D Mark IV features a programmable button to enable quick movie shooting, allowing photographers to record HD video instantly at the touch of a single button. The EOS 1D Mark IV also features a mini HDMI output, enabling video and images to be viewed directly on compatible HD-ready TVs.

Advanced customisation to suit you

Canon’s EOS 1D MARK IV is highly customisable, allowing photographers to take complete control of the camera’s features. Autoexposure (AE) and flash exposure (FE) micro-adjustments allow photographers to fine-tune the exposure for any given purpose, enabling them to perfectly match two separate cameras for consistent results or simply adjust the settings to meet specific personal requirements and tastes. Preferred user profiles can also be stored to memory card and subsequently transferred to other EOS 1D Mark IV bodies, so that photographers can seamlessly transfer their profile to another body if required.

Further customisable features include the ability to add copyright information directly in the camera. This enables photographers to embed their details within each shot as standard, removing the need for retrospective data insertion, and allowing news photographers to get shots to picture desks in the shortest time possible. An integrated microphone also allows the recording of audio notes to accompany each image, which will directly benefit photographers who wish to keep a record of the content of each image as they shoot.

EOS system compatibility

The EOS 1D Mark IV is compatible with all existing EOS 1D Mark III accessories, EF lenses (excluding EF-S lenses) and EX Series Speedlite flash units. Untethered shooting and image transfer are available with the optional Wireless File Transmitter WFT-E2 II. New EOS 1D Mark IV accessories will also be backwards compatible with EOS 1D Mark III bodies, subject to a firmware upgrade.

Pricing & Availability

The EOS 1D Mark IV is available from the end of December 2009 priced at £4499.00 / €5499.00 RRP inc. VAT.