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
Used Canon EOS-1D Mark III Listings on GearFocus
Overview — Canon EOS-1D Mark III
Key Features — Canon 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.
Specifications — Canon EOS-1D Mark III
| Spec | Detail |
|---|---|
| Use Cases | Sports, Wildlife |
| Type | DSLR |
| Sensor | APS-H |
| Resolution | 10.1 MP (3888 x 2592) |
| Processor | Dual DIGIC III |
| ISO Range | 100 – 3200 |
| AF System | Phase Detection |
| AF Points | 45-point (19 cross-type) |
| Max Photo Resolution | 3888 x 2592 |
| Burst Rate | 10 fps |
| Display | 3.0 inch LCD |
| Viewfinder | Optical |
Description — Canon 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.
Pros — Canon 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
Cons — Canon 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
Videos — Canon EOS-1D Mark III
Canon eos 1d mark iii - My Thoughts — David Cuhls










