In fish-eye projection, or <i>azimuthal equidistant projection</i>, straight lines become curves when they appear a large angular distance from the centre of the field of view (like the distortions seen with very wide angle camera lenses).
In 'n visoog projeksie, of <i>azimutale gelyke afstandprojeksie</i>, word reguit lyne kurwes wanneer hulle op 'n groot hoekafstand van die middelpunt van die gesigsveld voorkom (soos die verbuigings wat gesien word met wye hoek kameras).