Ultra wide angle lens the difference is only whether distortion is present or not. However, the shorter the focal length, the more difficult it is to implement rectilinear correction. In fisheye lenses, the visual angle is close to or more than 180 degrees in at least one direction. For example, a "diagonal fish eye" would have a viewing angle of at least 180 degrees within the diagonals of the frame. A "circular fisheye" would represent the image in the form of a circle. Rectilinear ultra-wide angle lenses are used in photography and cinematography sometimes to achieve three-dimensional perspective distortion instead of simply two-dimensional barrel
Wilt: Larger than Life calls it "a solid biography for any sports collection", "addresses the misconception [that Chamberlain was perennially called a loser]", and "also gives enough, but not too much, attention to Chamberlain's ill-considered, though possibly accurate, boast that he'd slept with some 20,000 women." Wilt: Larger than Life Wilt: Larger Than Life () is a biography of deceased NBA basketball Hall-of-Famer Wilt Chamberlain, written by journalist Robert Cherry. The 416-page book was published in November 2004 by Triumph Books. The foreword is written by Jerry West, Chamberlain's teammate and friend on the Los Angeles Lakers. It is the only biography of Wilt