- APS-C 368.2mm2
- 14.6 megapixels
- ISO 100 - 3200
- Go in depth with our full Pentax K20D Review.
- See real-world photos taken with the K20D.
- 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.
- Succeeded by the Pentax K-7
- Compare K20D vs K-7
- Succeeded by the Pentax 645Z
- Compare 645D vs 645Z
- Compare PENTAX K-7 vs PENTAX 645Z