2 A B C D E F G H I K L M N O P R S T U V W


orthographic lenses are a type of fisheye lenses

orthographic lenses are also called” hemispherical“or “orthographisch
orthographic lenses use an image mapping function of type
r = f sin \theta

maintains planar illuminance

Type : orthographic weak medium strong max
angles 66° 90° 120° < 180°


An orthographic / hemispherical fisheye, uses a parallel projection of a hemisphere onto a plane. The resulting image will obviously be circular. The widest view angle is 180 degrees. At +/-90 degrees extreme distortion will occur. Due to this heavy distortion it’s less often used than f-Theta / angular fisheye.

fisheye types