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
Larger Than Live Larger Than Live Larger Than Live is the fifth studio album by heavy metal band Keel. It was released in 1989 on Gold Mountain Records. The album consists of six new studio tracks and six of the band's previous songs recorded live at The Roxy in West Hollywood, CA. It was also the only album to feature keyboardist Scott Warren and guitarist Tony Palamucci (as guitarist Marc Ferrari left the band due to creative and personal differences). Following the filming of the music video for the song "Dreams Are Not Enough," lead vocalist/founder Ron Keel announced the disbandment of Keel.