wide-angle

a. (Photog. & Optics) Having or covering an angle wider than the ordinary; -- applied to certain lenses of relatively short focus. Lenses for ordinary purposes have an angle of 50° or less. Wide-angle lenses may cover as much as 100° and are useful for photographing at short range, but the pictures appear distorted. [ Webster 1913 Suppl. ]

[ 1913 Webster ]