equal area lenses are a type of fisheye lenses
equal area lenses are also called “equisolid angle” or “flächentreu”
Equal area lenses use a image mapping function of the type
such lenses maintain areas. Objects that have the same area have images of the same area.
| Type : Equal Area | weak | medium | strong | max |
|---|---|---|---|---|
| angles | 94° | 131° | 180° | < 360° |
see
Fisheye Types