- Medium format 1,452.0mm2
- 40.0 megapixels
- ISO 200 - 1000
- Go in depth with our full Pentax 645D Review.
- See real-world photos taken with the 645D.
- 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.
- Succeeded by the Pentax 645Z
- Compare 645D vs 645Z
- Succeeded by the Canon 1DX Mark II
- Compare 1DX vs 1DX Mark II
- Compare PENTAX 645Z vs CANON 1DX MARK II