- 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.
- 4/3 224.9mm2
- 16.1 megapixels
- ISO 200 - 25,600
- Go in depth with our full Olympus E-M1 Review.
- See real-world photos taken with the E-M1.
- Succeeded by the Pentax K-7
- Compare K20D vs K-7
- Succeeded by the Olympus E-M1 II
- Compare E-M1 vs E-M1 II
- Compare PENTAX K-7 vs OLYMPUS E-M1 II