This demonstration video discusses and shows the features of the Sealife Fisheye Wide Angle Lens. The Fisheye Wide Angle Lens increases field of vision by 80%. It features a depth of field 12 inches to infinity - get as close as 12 inches to your subject. The Sealife Fisheye Wide Angle Lens easily attaches on and off - even underwater. It can be used up to a depth of 200 feet and is compatible with ALL DC-Series SeaLife digital cameras.