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
Less Than Zero (novel) School in Encino, California, where Bonaduce, recording artist Michael Jackson, film actor Christian Brando, and other children of wealth and celebrity went to school together. In commenting on the novel, Bonaduce notes, "When the book "Less Than Zero" came out, all my classmates were pissed. Not because it was an exact portrayal of our school - but because we failed to get any royalties." "Less Than Zero" has an extensive cast of characters; the ones listed play major roles throughout the novel. The book "Less Than Zero" was very loosely adapted into a movie in 1987 by 20th Century Fox