pbr A scuba diver who came face-to-teeth with a shark used a camera to fend off the animal when it came at him - and he has the frightening video to prove it.br ppbr Scott MacNichol, 30, was shaken up but uninjured after a porbeagle shark apparently mistook his camera equipment for food.br ppbr MacNichol was diving near Eastport, off the eastern tip of Maine. He estimated the shark was 8ft long and weighed about 300 pounds.br ppbr MacNichol saw the shark swimming above him while he was filming the ocean floor under empty salmon pens.br ppbr The animal then came at him, jabbing at the camera with its snout. In the video, its sharp teeth fill the frame before it swims off.br ppbr MacNichol said he was petrified at the animal's behaviour and screamed underwater.br ppbr Porbeagles are coldwater sharks that have a similar body shape and tail to great white sharks.