Ricoh published on their website several full size photos taken with the new Pentax K-1 camera. Few other sample photos can be found at DC.watch.
Update: more sample photos from the Pentax K-1 can be found at:
![Pentax K-1 at ISO 3200](https://pentaxrumors.com/wp-content/uploads/2016/02/Pentax-K-1-at-ISO-3200.jpg)
Pentax K-1 at ISO 3200
![Pentax K-1 at ISO 25600](https://pentaxrumors.com/wp-content/uploads/2016/02/Pentax-K-1-at-ISO-25600.jpg)
Pentax K-1 at ISO 25600