King of Speed! Detailed explanation of Canon EOS 1D MARK IV!

IT168 News Canon (China) Co., Ltd. grandly releases the EOS-1D Mark IV, a professional digital SLR camera for professional photographers. EOS-1D Mark IV is the eighth product in the EOS-1D/1Ds series and is the successor to the EOS-1D Mark III, which has been widely praised by professional photographers in the fields of news reporting and sports photography. EOS-1D Mark IV relies on Canon's advanced digital technology to achieve an ISO sensitivity of over 100,000 (102400), and the commonly used ISO sensitivity range has also been expanded to ISO 100-12800. In terms of autofocus performance, the EOS-1D Mark IV has also made breakthrough improvements. It is equipped with cross-type focus sensors on 39 of the total 45 autofocus points. In addition, the EOS-1D Mark IV is also equipped with a CMOS image sensor with approximately 16.1 million effective pixels independently developed and produced by Canon and two high-performance DIGIC 4 digital image processors, achieving a maximum of approximately 10 shots with approximately 16.1 million effective pixels. /sec continuous shooting speed. The launch date of the EOS-1D Mark IV is expected to be mid-December 2009. Since the release of the EOS-1D, the first digital SLR camera in the EOS-1 series in 2001, with the With the advancement of digital technology, the EOS-1D/1Ds series is also constantly improving. The EOS-1D Mark III, released in 2007, has been praised and loved by many professional photographers in the field of news reports and sports photography due to its high performance. With the continuous advancement of photography, professional photographers and photography enthusiasts are increasingly calling for higher-performance flagship cameras. Therefore, Canon has inherited the concept of the EOS-1 series of film SLR cameras and combined it with the industry-leading digital technology to develop a brand-new The EOS-1D Mark IV, which makes possible digital performance, not only has an ISO sensitivity of over 100,000 (102400), but also has a 39-point cross-type full 45-point autofocus sensor, which can bring higher subject accuracy. Capturing power. It achieves high-definition image quality of approximately 16.1 million effective pixels and a continuous shooting speed of approximately 10 frames per second at high pixels. The advanced digital capabilities of the EOS-1D Mark IV respond to the strict requirements of professional photographers. It also expands the new shooting field of professional digital SLR cameras.

As the flagship series of EOS professional digital SLR cameras, EOS-1D Mark IV is introduced without reservation in order to meet the strict requirements of professional photographers. It incorporates various advanced technologies. The image sensor uses an APS-H specification CMOS image sensor independently developed and produced by Canon, with an effective pixel count of approximately 16.1 million, which is precisely because of Canon’s continuous pursuit of digital technology. The performance of the image sensor and digital image processor has been improved. Through the ISO sensitivity expansion function, ISO sensitivity ranges from over 100,000 (102400) to as low as 50 can be obtained. The commonly used ISO sensitivity range is expanded to ISO 100-. 12800. ISO 50-102400***12 levels, the greatly improved optionality makes the shooting field wider. The dual DIGIC 4 equipped with two digital image processors makes the EOS-1D Mark IV faster through parallel processing and new algorithms. It performs image processing efficiently and achieves a continuous shooting speed of about 10 frames/second at high pixels. It can shoot about 85 frames continuously when using JPEG/large (based on Canon test standards. Using a 4GB CF card of about 30MB/second, JPEG quality 8, ISO 100 and standard photo style). The viewfinder field of view is approximately 100% required for professional digital cameras, and a large pentaprism is used to achieve higher performance in all 45 positions. The 39-point autofocus sensor uses a cross-type sensor, an unprecedented new design in EOS, which can accurately capture the subject.

EOS-1D Mark IV further strengthens the artificial intelligence servo autofocus. Algorithm, artificial intelligence servo autofocus has been upgraded to Generation II, and the performance of tracking moving subjects and focusing performance have become more stable. In addition, the autofocus function can be customized in detail to suit each scene and personal preferences. The EOS-1D Mark IV uses a 63-area metering sensor. The metering area can calculate a more accurate exposure value through linkage with the focus point. The EOS-1D Mark IV is also the first professional digital SLR camera to be equipped with a full-HD video shooting function. It can shoot full-HD (1920?1080) short videos at a high quality of up to 30 frames per second. In addition, the Live View shooting function has been further improved, and the autofocus mode is included in the EOS-1D/1Ds series Live View mode for the first time. The back LCD monitor of the EOS-1D Mark IV adopts a 3.0-inch, approximately 920,000-dot Clear Display LCD Monitor Type II, which serves as both an image confirmation viewer and a second viewfinder during Live View shooting and movie shooting. . Its structure is also very different from before. The gap between the liquid crystal panel and the protective layer is filled with optical elastic materials.

It greatly reduces external light reflection, improves visibility when shooting outdoors on sunny days, and makes shooting smoother. As the flagship series of EOS professional digital SLR cameras, the EOS-1D Mark IV has created a new world in the field of professional photography with its reliability and technical strength.

Over 100,000 ISO sensitivity!

The improvement in the performance of image sensors and digital image processors has enabled the ISO sensitivity to reach an ISO sensitivity of over 100,000 (102400) that film cannot match. The lowest ISO sensitivity can be extended to ISO 50, and the wide ISO sensitivity range of ISO 50-102400***12 levels expands the shooting possibilities. The commonly used ISO sensitivity range is the highest among the EOS digital SLR series, reaching ISO 100-12800. Using an ultra-high ISO sensitivity is not only very beneficial for shooting in dim scenes, but also greatly reduces the occurrence of hand shake and subject shake, so it can be used for indoor sports photography, etc. Increasing the ISO sensitivity during flash shooting can enhance the sensitivity to light. Even if the subject is far away from the camera and the light from the flash cannot fully reach it, the image can be brightened to a certain extent, which is very beneficial for flash shooting.

Real-time display of ISO sensitivity selection screen during shooting

ISO sensitivity range setting screen

EOS-1D Mark IV or EOS-1D/1Ds series The first camera equipped with ISO auto function. Whether shooting still images or movies, the ISO sensitivity range of ISO 100-12800 can be completely left to the camera to choose ("Highlight tone priority" is ISO 200-12800). When using the B door and flash, it is fixed at ISO 400. When shooting movies, ISO 102400 can be used through the extended function). In addition, the range that can be automatically set during Live View shooting is the same as that for viewfinder shooting. Because it can shoot with ultra-high ISO sensitivity, it can suppress the occurrence of various shakes when shooting handheld. When the brightness of the subject suddenly changes and correct exposure cannot be achieved, the ISO sensitivity safety shift function in the custom function can automatically set it between ISO 100-12800 to obtain accurate exposure. After activating this function, in program automatic exposure, shutter-priority automatic exposure and aperture-priority automatic exposure modes, even if the upper and lower limits of ISO sensitivity are set in the custom function, the camera will automatically cancel ISO when appropriate exposure cannot be obtained. The sensitivity limit is automatically set between ISO 100-12800.

39-point cross-type full 45-point autofocus sensor!

Autofocus system with enriched focus point selection modes

EOS-1D Mark IV*** is equipped with 45 autofocus points, which uses a high-precision cross-type autofocus sensor There are 39 points, which can be said to be the highest in the history of EOS. The 39 AF points are all in a cross-shaped configuration, equipped with a line-type AF sensor that is good at capturing subjects and detects horizontal lines with the F5.6 beam, and a line-type AF sensor that detects vertical lines with an F2.8 beam for high focusing accuracy. sensor, achieving high-speed and precise focusing. In addition, the autofocus sensor at the center focus point can also support lenses with a maximum aperture of F4. Therefore, when a lens with a maximum aperture of F4 or greater is attached (including when combined with an extender, the maximum aperture is reduced to F4), focusing can still be achieved through the cross-type autofocus sensor. Not only that, when the lens is combined with an extender, even if the maximum aperture is reduced to F8, the camera can still focus through the horizontal line detection autofocus sensor. In addition to the central focus point, the 38-point focus can also be achieved through the cross-type autofocus sensor when using the EF 17-40mm f/4L USM and EF 24-105mm f/4L IS USM lenses with a maximum aperture of F4. In addition, among the lenses with a maximum aperture of F2.8 or greater, the 4 telephoto lenses will reduce the aperture to F4 after installing an extender, but even in this state, the cross-type autofocus sensor can still be used to focus.

The number of 5 selectable AF points set by the selectable AF point function

The EOS-1D Mark IV utilizes a full 45-point multi-point AF, Furthermore, by manually selecting just one point, you can also switch the AF point selection mode according to the subject or shooting situation, further improving the ability to capture the subject. For example, the custom function "Autofocus expansion of selected focus point" can activate the AF points around the selected focus point and increase the number of AF points used for focusing. For some moving subjects whose dynamics are unpredictable, it will be difficult to achieve focus using only one selected AF, but it is very convenient to use AF expansion. After selecting "45-point full area" under "Autofocus expansion of selected focus point" and setting the autofocus mode to Artificial Intelligence Servo AF, the autofocus range will be centered on the selected AF point and extend to the surrounding adjacent areas. Up to 18 AF point expansion. Once the AF point selected in conjunction with the subject's movement is switched to another AF point, the AF expansion range also becomes centered on the new AF point.

Since the autofocus range for tracking the subject is smaller than using the full 45 points, it can continue to track and focus on the main subject even if other subjects enter the composition.

(File name: 12_cn.eps) An autofocus point function linked to the direction that can detect the camera direction and automatically switch the focus point position

Except for automatic selection in EOS-1D Mark IV AF point, manual selection of AF point can be selected from 45 points, 19 points, 11 points, inner 9 points and outer 9 points. In addition, after selecting "Choose a different AF point" in Custom Functions and Orientation Linked AF Points, the AF point position will default to the last selected focus point position in portrait shooting and landscape shooting respectively. When shooting, the camera automatically detects the orientation of the camera and focuses at the previously set autofocus point when shooting vertically or horizontally. If you decide which AF point position to use before shooting, you can focus quickly when the composition suddenly changes. In addition, it is also equipped with "fixed-point autofocus". Pressing the autofocus stop button on some super telephoto lenses will reduce the autofocus range and make the focus position more precise.

Dual DIGIC 4 and newly developed APS-H sensor!

EOS-1D Mark IV uses the DIGIC 4 digital image processor. Huge data is processed at high speed through dual DIGIC 4 equipped with two digital image processors. The EOS-1D Mark IV can achieve a maximum continuous shooting speed of approximately 10 frames per second with a high pixel count of approximately 1610 effective pixels. It is precisely because in terms of information processing, the dual DIGIC 4 is linked with a CMOS image sensor capable of 8-channel high-speed reading and two newly developed 4-channel analog-to-digital conversion front-end modules to form a high-speed parallel processing circuit, thereby achieving This continuous shooting speed. In addition, the EOS-1D Mark IV is equipped with a cache that can perform high-speed data transmission. When DIGIC 4 performs parallel image processing, it can shoot approximately 85 images continuously using JPEG/large (based on Canon test standards. Using approximately 30MB/sec 4GB CF card, JPEG quality 8, ISO 100 and standard photo style).

Dual DIGIC 4 digital image processor capable of high-speed image processing

EOS-1D Mark IV is equipped with a newly developed APS-H standard image with approximately 16.1 million effective pixels The sensor has a single pixel area of ??5.7 to 5.7 microns and an effective sensor area of ??27.9 to 18.6 mm. It also uses an RGB primary color filter with excellent color reproduction. The introduction of new technology has achieved a good signal-to-noise ratio, coupled with the high-speed and low-noise imaging processing of dual DIGIC 4 digital image processors, reaching an ultra-high ISO sensitivity of the order of 100,000 (102400) and an 8-channel readout zone. It offers high-speed continuous shooting of up to approximately 10 frames per second, achieving a wide dynamic range.

The gap between microlenses is eliminated, and the gapless microlens structure improves the light concentration rate of the photodiode

The newly developed CMOS semiconductor manufacturing technology introduces more precise new manufacturing Craftsmanship. While basically ensuring the photodiode area, a photodiode structure with high photoelectric conversion rate is used to improve the signal-to-noise ratio. Although the pixel area is reduced, sufficient light signals can still be obtained and transmitted. In addition, the use of gapless microlenses and the use of new materials in color filters improve transmittance, and the shortening of the distance between microlenses and photodiodes further enhances the light gathering effect. The signal gain circuit is equipped with a circuit that can suppress external noise of the image sensor. The use of these technologies makes high ISO sensitivity, low noise and wide dynamic range possible.

An optical viewfinder with a field of view of 100% and a 63-area metering sensor linked to the autofocus point

The optical viewfinder of the EOS-1D Mark IV is positioned up, down, left and right It has reached about 100% field of view, which is essential for professional cameras. The image viewed in the viewfinder is basically the same as the actual captured image, allowing professional photographers with strict requirements on composition to take photos with confidence. Viewfinder magnification is approximately 0.76x (-1m-1, using a 50mm lens to focus at infinity). The optical viewfinder can achieve such high performance because it uses a large pentaprism to ensure a clear, bright viewfinder environment without vignetting. The diopter can be adjusted from -3 to +1dpt, and the eye point is approximately 20mm. In addition, the built-in eyepiece hood on the eyepiece side is made of light gray, making it easier to confirm the opening and closing status of the eyepiece hood. The high-end design unique to professional cameras can be seen in every detail. The standard focusing screen of the EOS-1D Mark IV is the "Ec-C IV" which has the advantages of easy focusing, high brightness, less grain, and natural blur effects. In addition, there are replaceable focusing screens (sold separately) suitable for various shooting scenarios. You can choose the most suitable one from more than 10 types of focusing screens, including the laser-matte checkered focusing screen that is suitable for determining the composition of your shot.

An optical viewfinder that uses a large pentaprism to achieve 100% field of view and clear field of view

In order to control exposure more accurately, the EOS-1D Mark IV is equipped with an automatic alignment sensor. Focus-linked 63-zone metering sensor. Each metering area and 45 autofocus points are highly coordinated during metering to calculate the appropriate exposure value. There are four metering modes to choose from: evaluative metering, partial metering, spot metering and center-weighted average metering. In particular, the algorithm for evaluative metering has been improved to further reduce the dependence on the subject when metering and achieve stable metering control.

Metering range of 3 metering modes

During flash photography, based on the E-TTL II automatic algorithm, the distance information of the lens can be flexibly used, regardless of the subject. Color and size effects, shooting with a steady amount of flash.

High-end image processing and compensation functions!

There are 6 preset photo styles in EOS-1D Mark IV. In addition, there are 7 photo style files including "Studio Portrait" and "Snapshot Portrait", which can be downloaded from the Canon website and registered to the camera. This allows you to select the color and image expression that the photographer prefers. Each photo style can have separate settings for sharpness, contrast, saturation and hue. Photo styles adjusted to personal preferences can also be registered to the camera. In addition to automatic white balance, the white balance function also has 9 presets including "Daylight" and "Cloudy" to choose from, including user-defined and color temperature settings. The color space corresponds to two modes, namely sRGB, which is suitable for general purposes such as viewing photos on a computer, and Adobe RGB, which has richer color performance. Not only that, the EOS-1D/1Ds series is equipped for the first time with image compensation technologies such as automatic brightness optimization that can correct underexposure and low-contrast images, and lens peripheral light correction that can compensate for underexposure in the four corners of the image. The processing of these image data is carried out by converting the analog signal output by the CMOS image sensor into a digital signal using 14-bit analog-to-digital conversion (16384 colors), thus achieving a richer layered expression.

White balance selection screen

Photo style selection screen

Color space selection screen

Full HD (1920?1080/30fps) short film Shooting function!

EOS-1D Mark IV’s short film shooting function relies on the high-performance image sensor and the high-speed image processing capabilities of dual DIGIC 4 digital image processors to achieve full high-definition high-definition video with low noise and high ISO sensitivity. For fine image shooting, you can use the unique blur effect brought by the large image sensor to shoot short videos. And it can use the rich interchangeable lenses unique to digital SLR cameras to bring a wider space for image expression. In terms of image quality, you can choose from Full HD image quality with a resolution of 1920~1080 (frame rate can be selected from 30/25/24fps), HD image quality with a resolution of 1280~720 (frame rate can be selected from 60/50fps) ) and standard definition image quality with a resolution of 640 to 480 (the frame rate can be selected from 60/50fps). The recording format is ?MOV?. Stereo recording can be achieved by connecting an external stereo microphone. In addition, still images can be captured even during movie shooting. The captured short videos can be easily edited on the camera.

Movie playback screen

Movie editing screen

Real-time display shooting function with precise focus!

The Live View shooting function allows you to zoom in on the part you want to focus on through the back LCD monitor, which is known as the second viewfinder in the digital age, and achieve very precise focus during shooting. In the live view mode, in addition to the manual focus mode, the EOS-1D Mark IV can also use three autofocus modes (live mode, face priority live mode, and quick mode). When shooting in Live View, you can use the Live View simulation function to simulate effects such as exposure compensation and photo style in real time through the rear LCD monitor screen. In addition, it also has a grid line display function that can assist users in composition and prevent the camera from tilting. It can not only display two grid lines vertically and horizontally, but also adds five grid lines vertically and three grid lines horizontally. Line display mode can be selected as needed.

Real-time display of the autofocus mode during shooting

Real-time display of the shooting screen

10 times magnified image

Significantly reducing external light reflection The back LCD monitor!

The back LCD monitor of the EOS-1D Mark IV adopts a 3.0° clear display LCD monitor type II with approximately 920,000 dots, and its viewing angle is 160° in both the up, down, left and right directions. ?Clear Display LCD Monitor Type II? Adopts a new structure in order to reduce the reflection of external light that reduces the visibility of LCD monitors. Different refractive indexes are a major cause of external light reflection. The Clear Display LCD Monitor Type II fills the gap between the LCD panel and the surface protective layer with optical elastic material, so that the refractive index of the surface protective layer and the gap reaches Basically the same, thus greatly reducing the external light reflection of the LCD monitor.

Therefore, excellent visibility can be achieved even on sunny days outdoors. The LCD monitor is not only used to confirm the captured image, but as a second viewfinder in the digital age, it can also perform precise focusing.

The back LCD monitor adopts clear display LCD monitor type II

Clear display LCD monitor structure

Colorful EOS intelligent integrated flash system!

EOS-1D Mark IV allows you to experience a variety of flash photography by installing an EX series external flash for EOS. When 580EX II, 430EX II or 270EX is installed, various function settings of the flash and customized flash function settings can be directly changed through the camera's menu screen (some functions of other models of EX series flashes can also be set). When using an external flash with master function or flash signal transmitter ST-E2, it can be combined with an external flash with slave function for wireless multi-light flash photography.

A shutter with a lifespan of 300,000 operations and a magnesium alloy body

As a professional digital SLR camera, the EOS-1D Mark IV has the ability to withstand harsh conditions such as Antarctica, the Arctic, deserts or light rain. A tough body that works well in shooting environments. Not to mention the upper, front and rear casings, the internal frame and mirror box are also made of magnesium alloy. And a highly wear-resistant coating is implemented on the outer casing. This resulted in a camera body that combines high strength, high rigidity, light weight, and high quality. All mechanical parts, including the shutter unit, and electronic parts are reliable enough to withstand 300,000 shots. All operating parts and the seams of the shell have been rigorously sealed to achieve good waterproof, drip-proof and dust-proof effects.

EOS Integrated Dust Removal System

It can deal with the dust attached to the infrared protection filter in front of the image sensor and reflected in the captured image, from generation to removal. EOS integrated dust removal system. This system suppresses the generation of dust inside the camera by using materials that suppress friction debris from the shutter unit and body cover. In addition, the fluorine coating on the surface of the infrared protection filter can prevent dust from adhering. When there is dust attached, the dust can be shaken off through the ultrasonic vibration of the sensor self-cleaning unit. If there is still dust left after performing the above operations, you can use the included software to edit the image based on the dust removal data obtained to effectively reduce the impact of dust.

Startup time is 0.1 seconds! Shutter lag 40 milliseconds!

The startup time of the EOS-1D Mark IV after turning on the power is only about 0.1 seconds (based on CIPA standards). It can also respond calmly to unexpected shutter timings. The shutter button is highly responsive and responds when pressed lightly, inheriting the operability of the EOS-1D/1Ds series. Shutter lag can be further shortened through the custom function, with the fastest setting being approximately 40 milliseconds* when the aperture is wide open. The viewfinder image disappears in approximately 80 milliseconds, so the subject will not be lost even when looking through the viewfinder during continuous shooting.

*Typically about 55 milliseconds.

Encrypted recording of captured images

For professional digital SLR cameras, a set of devices can prevent the captured images from being lost, copied, and viewed, tampered with, and used by third parties without authorization, protecting the photographer. The right high security system is indispensable. By using the original data security suite OSK-E3 (sold separately), the EOS-1D Mark IV can determine whether the image has been edited without authorization through the original data verification system. In addition, if it is one of the seven models of the EOS-1D/1Ds series digital SLR cameras since the EOS-1Ds, you can shoot by installing the raw data verification OS card included with the OSK-E3 into the camera. Encrypted recording of images (still images only). It ensures the high level of security that professional digital SLR cameras should have. Encrypted images can be recovered using the software included with the original data security suite.

Wireless File Transmitter

EOS-1D Mark IV is capable of wireless and wired communication through a LAN by combining with the Wireless File Transmitter WFT-E2 II C. In terms of wireless network specifications, WFT-E2 II C is compatible with the IEEE 802.11a standard that is less susceptible to radio wave interference, and the maximum connection speed is approximately 54Mbps. It is possible to directly transfer image data to an FTP server or remotely shoot real-time images displayed on a portable device with a browser function. This creates a system that utilizes local area networks to transmit rich information. In addition, you can also use the USB Host (USB control) function to connect the WFT-E2 II C to a mobile hard drive (requires external power supply) using a USB cable to save the captured images directly in the hard drive. Not only that, you can also use a USB cable to connect to a GPS device via wired or Bluetooth-compliant wireless methods to automatically add shooting location information to the captured image data.