The dog's view of the wolf coming in to attack - Halvor Sveen/YouTube
The camera, strapped on in a metal box, may have saved the dog's life, as it took the brunt of the wolf's bite.
Halvor Sveen had fixed the camera to his dog Igor, a Norwegian elkhound, for a hunting film he was making with friends. He was out with the dog in the woods near his home in Rendalen, north of Lillehammer, when it rushed off in pursuit of a wolf.
Sveen only realised the footage he had caught when he got home and connected the camera to his computer, as he had been some 150m away when the wolf rounded on his dog.