Autor: Redaktion

Canon EOS- 1 DX Mark III

Canon announced their new 5.5K RAW- DSLR, EOS-1D X Mark III, at CES 2020 in Las Vegas.

It can record 5.5K RAW internally at up to 60 frames per second and 4K DCI in 10-bit 4:2:2 at up to 60 frames per second. It does not belong to the group of mirrorless system cameras, but is a "classic" DSLR (Digital Single Lens Reflex) camera including the corresponding advantages and disadvantages.
The Canon EOS-1D X Mark III was primarily developed for sports and nature photographers. However, if you want to record videos and still images, it's an equally talented hybrid.

20.1 MP full frame sensor and DIGIC X image processor

The camera uses a revised 20.1-megapixel full-frame CMOS sensor and a DIGIC X image processor. The sensor itself is paired with a newly developed low-pass filter, which is supposed to eliminate moiré and other aliasing effects.

The sensor and processor work together to enable continuous shooting at up to 20 frames per second in live view or at 16 frames per second in the viewfinder. The buffer enables RAW + JPEG bursts with up to 1000 image sequences.

There is a native sensitivity range of ISO 100-102.400, which can be expanded to ISO 50-819.200.

Main features

  • 20.1MP full frame sensor
  • DIGIC X Image Processor
  • Continuous shooting at up to 20 frames per second in live view or at 16 frames per second in the viewfinder
  • EOS iTR AF X autofocus and dual pixel CMOS AF
  • DCI 4K and 5.5K Raw Video
  • Dual CFexpress card slots
  • Integrated Wi-Fi, Bluetooth and GPS

Video specifications

The 1D X Mark III can record DCI 4K internally with up to 60 fps in 10-bit 4:2:2 or in 5.5K RAW as well as FullHD with 120 fps. Particularly noteworthy is the ability to record 5.5 K RAW (5,472 x 2,886) internally at up to 60 fps. When recording in 5.5 K RAW, the footage is recorded in 12-bit CRM files with a resolution of 5,472 × 2,886.
The reason why the camera can record 5.5K RAW with up to 60p has, among other things, to do with the fact that Canon chose Dual CFexpress memory card slots.

DCI 4K recording is possible both over the entire sensor area and in crop mode. At 5.5K RAW, the full sensor area is always read out. To process the RAW movie files, you must use Canon Digital Photo Professional 4 software. Here you can make adjustments and then export your clips as image sequences. NLE plugins and special Canon Cinema RAW software are also available.

A high-quality debayer algorithm (oversampling only applies to 4K-DCI / UHD) that was used in the CINEMA EOS SYSTEM has been adopted.

The 1D X Mark III can use IS lenses for video recording and there is manual focus. The same system as the C200, C500 Mark II etc. is used as focus aid.

The camera can be set to record in H.264 8-bit 4:2:0 or in 10-bit H.265 10-bit 4:2:2 when Canon Log is used. In Canon Log, the lower limit of the automatic ISO sensitivity setting range is ISO400.

When recording at higher frame rates, e.g. 100 / 120fps, the maximum recording time is 7 minutes and 29 seconds. High frame rates are only possible in 8 bits. The compression is MPEG-4 H.264 / AVC and the recording format MP4.
The biggest limitation when recording RAW videos is that no autofocus is available at 50/60 fps and no IS (Image Stabilization) works regardless of the frame rate. The focus support also does not work with RAW pictures.
Likewise, with full frame UHD or 4K DCI with 50/60 frames per second without autofocus, if you work with 4K DCI in cropped sensor mode with 50/60 fps, the autofocus is fully available.

Dual recording, e.g. RAW recording and additional 4K proxy files in MP4 is possible. It would have been nice to see a Canon RAW Light option. The problem with recording 5.5K RAW with 23.98p is that the high data rate means that a 256GB card is full in just 18 minutes. The data rate is 1,800 Mbit / s. 5.5 KB RAW at 60p is 2,600 Mbit / s.

The Canon EOS-1D X Mark III can output 10-bit footage in ITU-R BT.2020 color via HDMI.
The maximum recording time per film is 29 minutes and 59 seconds. In addition, there is unfortunately the fact that no focus magnification can be used during the recording.

Electronic image stabilization

Canon's EOS-1D X Mark III uses Electronic In-Body Stabilization (EIBS) to capture more fluid and stable footage in conjunction with the powerful new DIGIC X image processor.

If you want to use IS, there are some restrictions when recording video. When shooting RAW, it does not work at all and crops your picture depending on the mode you are shooting in.


The camera also gets a new auto focus system. The EOS iTR AF X uses 191 points to get the focus on a subject quickly and accurately. Of the 191 points, 155 are crossing points, which are characterized by different lighting conditions and offer increased accuracy in a variety of motifs. This AF system also uses deep learning technology to enable more sophisticated tracking functions such as head and face detection.

For video recordings or live recordings, a CMOS AF system with two pixels is used, which offers 3.869 manually selectable autofocus points with 525 automatic positions. CMOS-AF integrates two separate photodiodes in each pixel to provide a wide and dense network of phase detection elements across most of the image sensor, reducing focus search for faster and more direct control of focus placement.

When recording video, a Movie Servo AF mode provides smooth and natural focus, as well as the ability to set tracking sensitivity, AF speed, and face tracking priority. Thanks to the Touch AF system, simple focusing is possible by touching the touch screen.

Battery and other functions

A rechargeable LP-E19 lithium-ion battery offers improved performance compared to previous generation 1D cameras.

Integrated Wi-Fi, Bluetooth and GPS offer flexible wireless control and geotagging functions as well as the ability to apply IPTC tags to files.

Integrated USB Type-C, Mini-HDMI, headphone, microphone, N3 remote and Ethernet connections are available for physical, wired connectivity. Compatible with the optional WFT-E9A Wireless File Transmitter for faster file transfer over WiFi.

Body & design

The 1D X Mark III must be able to survive under the toughest conditions and therefore has a durable and robust body design. This camera uses a weatherproof magnesium alloy construction to protect against dust and moisture when working in particularly difficult environments.

The optical penta prism viewfinder has an updated mirror drive mechanism to reduce blackouts and the 3.2-inch, 2.1-point touchscreen LCD display is available for intuitive playback and menu navigation.

The case also has two CFexpress memory card slots.
It weighs 1.250 g (body only).

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