Canon EOS-1D X Mark III DSLR Camera
The Canon EOS-1D X Mark III is a 20.1 MP Full Frame (35mm) DSLR camera with 5.5K (5472x2886). It features 20.1MP Full-Frame Sensor and 20fps Burst Shooting. Used prices on GearFocus start from $2,414.34 with buyer protection and verified sellers.
Canon EOS-1D X Mark III DSLR Camera
Buy Canon EOS-1D X Mark III
Canon EOS-1D X Mark III 20.1MP Digital SLR Camera Body
Condition: Good
Product Highlights
- 20.1 MP Full Frame Sensor
- 5.5K RAW Video
- 20 fps Continuous Shooting
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Canon EOS-1D X Mark III Overview
The Canon EOS-1D X Mark III is Canon's flagship full-frame DSLR, built around a 20.1 MP full-frame (35mm) sensor powered by the DIGIC X image processor. Designed for professional sports, wildlife, and photojournalism workflows, it delivers a maximum burst rate of 20 fps and an ISO range of 100 to 102,400, giving shooters the flexibility to work across a wide range of lighting conditions. The autofocus system offers 191 points in viewfinder mode and an impressive 3,869 points in Live View, incorporating Phase Detection, Dual Pixel AF, Face Detection, Eye Detection, and AI-Based Subject Tracking — a comprehensive toolkit for locking onto fast-moving subjects.
Video capabilities are equally serious, with up to 5.5K (5472x2886) recording, 10-bit 4:2:2 H.265/HEVC, 12-bit RAW video output, and color profiles including Canon Log and HDR PQ (Rec. 2100/Rec. 2020). Frame rate options extend to 120fps at FHD resolution. The body is constructed from magnesium alloy with weather sealing and weighs 1,440g, reflecting its professional-grade build.
Dual CFexpress Type B card slots, Wi-Fi, Bluetooth, a 3.2-inch 2.1-million-dot touchscreen, and a standard Canon EF lens mount round out a well-specified professional imaging platform.
20.1MP Full-Frame Sensor: A 35mm full-frame CMOS sensor paired with the DIGIC X processor delivers high image quality and fast processing across demanding shooting scenarios.
20fps Burst Shooting: Captures up to 20 frames per second in mechanical shutter mode, making it suited for fast-moving subjects in sports and wildlife photography.
191-Point AF (Viewfinder): Phase Detection autofocus with 191 points in the viewfinder and up to 3,869 positions in Live View, with Eye Detection and AI-based subject tracking.
5.5K RAW Video: Records up to 5472x2886 RAW video with 12-bit output and 10-bit 4:2:2 H.265/HEVC, supporting Canon Log and HDR PQ for professional post workflows.
ISO 100–102,400: Native ISO range covers a wide spectrum of lighting conditions, expandable beyond for extreme low-light scenarios.
Dual CFexpress Type B Slots: Two CFexpress Type B card slots support high-speed sequential shooting and simultaneous backup or overflow recording.
Weather-Sealed Magnesium Alloy Body: Robust magnesium alloy construction with dust and moisture sealing is designed to withstand demanding field conditions.
~2,850 Shot Battery Life: The LP-E19 battery delivers approximately 2,850 shots per charge (CIPA, viewfinder), reducing the need for mid-shoot battery swaps.
Canon EF Lens Mount: Compatible with the full Canon EF lens ecosystem, giving shooters access to a wide range of Canon and third-party optics.
Wi-Fi & Bluetooth Connectivity: Built-in Wi-Fi and Bluetooth enable wireless image transfer and remote camera control from a mobile device.
Canon EOS-1D X Mark III Specifications
| Spec | Detail |
|---|---|
| Use Cases | Sports, Wildlife |
| Type | DSLR |
| Sensor | Full Frame (35mm) |
| Resolution | 20.1 MP |
| Processor | DIGIC X |
| ISO Range | 100 – 102400 |
| AF System | Phase Detection, Dual Pixel AF (Canon), Face Detection AF, Eye Detection AF, AI-Based Subject Tracking |
| AF Points | 191 points (viewfinder), 3869 points (Live View) |
| Max Photo Resolution | 5472x3648 px |
| Burst Rate | 20 fps |
| Max Video Resolution | 5.5K (5472x2886) |
| Max Frame Rate | 60fps |
| Bit Depth | 10-bit (4:2:2, H.265/HEVC), 12-bit (RAW video) |
| Video Color Profiles | Canon Log, HDR PQ (Rec. 2100/Rec. 2020), Standard |
| Image Stabilization | Digital / Electronic IS |
| Display | 3.2 inches Fixed TFT LCD touchscreen |
| Display Resolution | 2.1 million dots |
| Viewfinder | Optical pentaprism |
| Storage Media | CFexpress Type B |
| Connectivity | Wi-Fi, Bluetooth |
| HDMI | Mini HDMI (Type C) |
| Battery | LP-E19 |
| Battery Life | Approx. 2850 shots (CIPA, viewfinder) |
| Weather Sealing | Weather Sealed |
| Dimensions | 158 x 167.6 x 82.6 mm |
| Weight | 1440g |
| Lens Mount | Canon EF |
| Hot Shoe | Canon Standard (TTL) |
| Flash System | E-TTL II Auto Flash, compatible with Canon EX Speedlites, wireless multi-flash support |
Description
The Canon EOS-1D X Mark III is a professional full-frame DSLR built around a 20.1 MP full-frame (35mm) sensor and the DIGIC X image processor. Its 20 fps continuous burst rate and ISO range of 100–102,400 make it capable across a wide spectrum of shooting scenarios. The autofocus system delivers 191 points in viewfinder mode and 3,869 points in Live View, with Phase Detection, Dual Pixel AF, Face Detection, Eye Detection, and AI-Based Subject Tracking all on board.
Video recording reaches 5.5K (5472x2886) with 10-bit 4:2:2 H.265/HEVC and 12-bit RAW video, supported by frame rates up to 120fps at FHD and color profiles including Canon Log and HDR PQ (Rec. 2100/Rec. 2020). The magnesium alloy, weather-sealed body measures 158 x 167.6 x 82.6 mm and weighs 1,440g. Connectivity includes Wi-Fi, Bluetooth, a 3.5mm microphone jack, 3.5mm headphone jack, and Mini HDMI (Type C) output.
Dual CFexpress Type B slots and a 3.2-inch, 2.1-million-dot touchscreen complete the feature set for serious professional use.
Pros
- ✓High-speed burst shooting at 20 fps (photoSpecs.maxBurstFrameRate)
- ✓Extensive autofocus coverage with 191 viewfinder points and 3,869 Live View points, including Eye Detection and AI Subject Tracking
- ✓5.5K video recording with 10-bit 4:2:2 H.265/HEVC and 12-bit RAW video (videoSpecs.bitDepth)
- ✓Broad ISO range from 100 to 102,400 (iso.min / iso.max)
- ✓Weather-sealed magnesium alloy body built for demanding environments (bodyDesign.weatherSealing, bodyDesign.material)
- ✓Dual CFexpress Type B card slots for high-speed, redundant storage (storageMedia)
Cons
- ✗Body weighs 1,440g — among the heavier options for a DSLR (bodyDesign.weight)
- ✗No in-body optical image stabilization; only Digital/Electronic IS is available (imageStabilization.inBodyIS)
- ✗Limited to Canon EF mount — no native RF or third-party mount compatibility listed (mount.lens)
- ✗No USB-C port; relies on standard USB and Mini HDMI (Type C) for connectivity (connectivity.usbC, connectivity.hdmiOutput)
- ✗Fixed LCD display with no articulation noted in specifications (display.type)
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Frequently Asked Questions
What memory cards does the Canon EOS-1D X Mark III use?+
The camera uses dual CFexpress Type B card slots. Both slots are CFexpress Type B, enabling high-speed data transfer suited to the camera's 20 fps burst rate and high-bitrate video recording.
What video resolutions and frame rates are available?+
The EOS-1D X Mark III records up to 5.5K (5472x2886) resolution. Frame rate options include 23.976, 24, 25, 29.97, 30, 50, 59.94, and 60 fps, with 100fps and 120fps available at FHD resolution. The camera supports 10-bit 4:2:2 H.265/HEVC and 12-bit RAW video.
Does the camera support Eye Detection and subject tracking autofocus?+
Yes. The autofocus system includes Eye Detection AF and AI-Based Subject Tracking, alongside Face Detection AF, Phase Detection, and Dual Pixel AF. In Live View, the system offers up to 3,869 AF points for comprehensive subject coverage.
Is the Canon EOS-1D X Mark III weather sealed?+
Yes, the body carries a weather-sealed designation and is constructed from magnesium alloy (bodyDesign.weatherSealing, bodyDesign.material), making it suitable for use in challenging outdoor conditions.
What wireless connectivity does this camera offer?+
The camera includes built-in Wi-Fi and Bluetooth (connectivity.wifi, connectivity.bluetooth), enabling wireless image transfer and remote control. It also features a standard ISO hot shoe for flash compatibility with Canon EX Speedlites and wireless multi-flash support.
What color profiles are available for video recording?+
For video, the camera offers Canon Log, HDR PQ (Rec. 2100/Rec. 2020), and Standard color profiles (videoSpecs.colorProfiles). For stills, picture styles include Standard, Portrait, Landscape, Fine Detail, Neutral, Faithful, Monochrome, HDR PQ (HEIF, 10-bit), and three User Defined slots.