- 35mm 864.0mm2
- 18.1 megapixels
- ISO 100 - 51,200
- Go in depth with our full Canon 1DX Review.
- See real-world photos taken with the 1DX.
- APS-C 361.2mm2
- 25.7 megapixels
- ISO 100 - 1,600,000
- Go in depth with our full Pentax K-3 III Review.
- See real-world photos taken with the K-3 III.
- Succeeded by the Canon 1DX Mark II
- Compare 1DX vs 1DX Mark II
- Compare Canon 1DX Mark II vs Pentax K-3 III