Canon EOS-1D X Mark III
Real Sensor Data
- Brand
- Canon
- Sensor Format
- Full Frame
- Resolution
- 20.1 MP
- Pixel Pitch
- 6.56 microns
- Circle of Confusion
- 0.0288 mm
- Crop Factor
- 1.00x
- Announced
- 2020
Released in 2020, the EOS-1D X Mark III stands as the last DSLR flagship Canon built before the company shifted its professional sports and photojournalism line entirely to the mirrorless RF mount with the EOS R3 and later R1. Its 20.1-megapixel full-frame sensor deliberately prioritized speed and low-light performance over resolution, the same philosophy Canon's later stacked-sensor mirrorless flagships continued.
Canon EOS-1D X Mark III sensor specs
- Sensor
- Full Frame
- Resolution
- 20.1 MP
- Pixel dimensions
- 5,491 × 3,661 px
- Aspect ratio
- 3:2
- Pixel pitch
- 6.56 µm
- Crop factor
- 1.00x
- Circle of confusion
- 0.0288 mm
Full Frame sensor · DoF & Hyperfocal Calculator · Astro 500/NPF Calculator
The Mark III introduced a deep-learning-trained autofocus algorithm for subject tracking during optical-viewfinder shooting, a genuinely significant technical step for Canon at the time — the system studied real photographer eye and framing behavior during development to improve how the camera predicted where a moving subject would go next, a meaningfully more sophisticated approach than the more conventional tracking algorithms earlier 1D X generations relied on.
Canon also added a built-in illuminated top-plate status display and improved battery efficiency over the Mark II, real, practical refinements aimed at professional photographers shooting extended assignments in variable lighting conditions.
See these numbers used live in the DoF & Hyperfocal Calculator by selecting the Full Frame sensor format.
Frequently Asked Questions
Why did Canon end the 1D X DSLR line at the Mark III?
Canon shifted its professional flagship sports and photojournalism body entirely to the mirrorless RF mount, first with the EOS R3 and then the EOS R1, both built around stacked full-frame sensors that a DSLR's mechanical shutter and mirror mechanism can't match for continuous readout speed.