http://www.ricoh-imaging.fr/media/e1c686efa043d7d91344a93659c9e8b1/
http://www.ricoh-imaging.fr/media/a2bf009fb00aedeba9b0efa366960a9b/
Warning: Very LARGE Files!
More Samples @: http://www.ricoh-imaging.fr/fr/reflex-numeriques/photos/samples/PENTAX-K-S-1.html
(Click the link near the bottom per picture page to download full size image.)