K-7 HDR example images by Andrew Britten – Two re-sized JPEGs compare the use of the High Dynamic Range setting on the K-7 vs a normal image from the Pentax K10D.
Lens used was the Pentax DA 16-45mm f/4, and Andrew added that the the K-7's shutter sound is very impressive.
Andrew posted another set of K-7 photos which show the differences between HDR at OFF, Setting 1 and Setting 2.
Read Jack Howard's article on the K-7's HDR capabilities.