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Canon EOS-1D Mark III DSLR Camera

The Canon EOS-1D Mark III is a 10.1 MP (3888 x 2592) APS-H DSLR camera — known for its 10.1MP APS-H Sensor and 10 fps Burst Shooting. Used copies start from $299.99 on GearFocus, with buyer protection on every purchase.

Canon EOS-1D Mark III DSLR Camera

Canon EOS-1D Mark III DSLR Camera

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Canon EOS 1D III Body
Canon EOS 1D III Body

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OverviewCanon EOS-1D Mark III

The Canon EOS-1D Mark III is a professional-grade DSLR built around a 10.1 MP APS-H sensor capable of resolving images at 3888 x 2592 pixels. Powered by a Dual DIGIC III image processor, the camera delivers responsive performance across a native ISO range of 100 to 3200, giving photographers solid flexibility in varied lighting conditions. One of the standout characteristics of this body is its burst shooting capability, reaching up to 10 frames per second — a rate well-suited to fast-moving subjects in sports and photojournalism contexts.

The autofocus system offers 45 points in total, 19 of which are cross-type sensors, operating via phase detection for quick and reliable subject acquisition. The optical viewfinder provides 100% coverage, ensuring what you see is exactly what you capture. The camera accepts Canon EF mount lenses and stores images to CompactFlash media.

Connectivity includes USB output and a hot shoe for external flash or accessories. The body itself is constructed from magnesium alloy and carries weather sealing, making it a durable tool for demanding shooting environments. A 3.0-inch LCD display rounds out the feature set for image review and menu navigation.

The Canon LP-E4 Lithium-Ion battery powers the system.

Key FeaturesCanon EOS-1D Mark III

10.1MP APS-H Sensor: The APS-H format sits between APS-C and full-frame, offering a 1.3x crop factor that balances field of view with high pixel density for professional-quality stills.

10 fps Burst Shooting: Continuous shooting at up to 10 frames per second makes this camera well-suited for sports, wildlife, and press photography where capturing peak action is critical.

45-Point Phase Detection AF: The autofocus system spans 45 points, including 19 cross-type sensors, for broad frame coverage and reliable subject acquisition across a wide shooting area.

Dual DIGIC III Processing: Twin image processors handle high-speed data throughput, supporting fast burst rates and responsive in-camera processing across the ISO range.

ISO 100–3200 Native Range: The native sensitivity range covers common available-light scenarios, with the dual-processor system helping maintain image quality at higher ISO values.

~97% Optical Viewfinder: High-coverage optical viewfinder offers near-complete frame visibility, standard for professional DSLRs of this generation.

SpecificationsCanon EOS-1D Mark III

Canon EOS-1D Mark III full specifications
SpecDetail
Use CasesSports, Wildlife
TypeDSLR
SensorAPS-H
Resolution10.1 MP (3888 x 2592)
ProcessorDual DIGIC III
ISO Range100 – 3200
AF SystemPhase Detection
AF Points45-point (19 cross-type)
Max Photo Resolution3888 x 2592
Burst Rate10 fps
Display3.0 inch LCD
ViewfinderOptical

DescriptionCanon EOS-1D Mark III

The Canon EOS-1D Mark III is a professional DSLR centered on a 10.1 MP APS-H sensor producing images at 3888 x 2592 pixels, processed through a Dual DIGIC III image processing system. The camera's ISO range spans 100 to 3200, providing usable sensitivity across a range of lighting situations. For speed-driven shooting, the 10 fps burst mode makes the camera a capable tool for capturing decisive moments in fast-paced environments.

Autofocus is handled by a 45-point phase detection system, including 19 cross-type points, spread across the frame for reliable tracking and acquisition. The optical viewfinder delivers 100% coverage, so framing is accurate from edge to edge. The magnesium alloy body with weather sealing ensures the camera can handle demanding field conditions.

Images are stored to CompactFlash media, and the camera connects via USB with a hot shoe for external accessories. Six color profiles — Standard, Portrait, Landscape, Neutral, Faithful, and Monochrome — give photographers control over in-camera output. The 3.0-inch LCD display supports image review and menu navigation, and the system runs on the Canon LP-E4 Lithium-Ion battery.

ProsCanon EOS-1D Mark III

  • 10 fps continuous burst rate enables capture of fast-moving action
  • 45-point autofocus system with 19 cross-type sensors for broad and precise phase-detection coverage
  • Optical viewfinder with 100% coverage ensures accurate framing

ConsCanon EOS-1D Mark III

  • Maximum native ISO of 3200 is limiting compared to more modern professional bodies
  • 10.1 MP resolution may be insufficient for photographers requiring large print output or significant crop flexibility
  • No video recording capability based on available specifications

VideosCanon EOS-1D Mark III

Canon eos 1d mark iii - My ThoughtsDavid Cuhls

Resources & DownloadsCanon EOS-1D Mark III

Frequently Asked QuestionsCanon EOS-1D Mark III

What lens mount does the Canon EOS-1D Mark III use?+
The camera uses the Canon EF lens mount, making it compatible with the broad range of Canon EF lenses. No other mount systems are listed in the specifications.
What memory cards does the EOS-1D Mark III support?+
The camera supports CompactFlash (CF) cards as its storage media. No additional card slot types are listed in the specifications.
How fast can the EOS-1D Mark III shoot continuously?+
The camera supports burst mode with a maximum frame rate of 10 frames per second, making it well-suited for action and sports photography.
Does the EOS-1D Mark III have weather sealing?+
Yes, the body is listed as weather sealed and constructed from magnesium alloy, providing added durability in demanding shooting environments.
What is the autofocus system like on the EOS-1D Mark III?+
The camera features a 45-point phase detection autofocus system, with 19 of those points being cross-type sensors. Eye tracking and subject tracking are not listed in the specifications.
Can the EOS-1D Mark III record video?+
Based on the available specifications, no video resolution, frame rates, or related video capabilities are listed for this camera. It appears to be a stills-only body.
How do I check the shutter count on the Canon EOS-1D Mark III?+
We have a complete guide to checking the shutter count on the Canon EOS-1D Mark III, including what counts to look for when buying used. Read the full Canon EOS-1D Mark III shutter count guide.

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