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 Kind Less Than Kind Less Than Kind is a Canadian television comedy-drama series that stars Jesse Camacho as Sheldon Blecher, a teenager growing up in a loving but dysfunctional Jewish family in Winnipeg. The show's cast also includes Maury Chaykin and Wendel Meldrum as Sheldon's parents, Benjamin Arthur as his older brother Josh, and Nancy Sorel as his aunt Clara. The Blechers struggle to operate a driving school out of their home in Winnipeg's fading North End. "Less Than Kind" made its debut October 13, 2008, on Citytv, and moved to HBO Canada in February 2010. The ensemble cast of the