It is a type of wide-angle lens used in photography to capture extremely wide and hemispherical images. Its focus length varies between 8-10 mm for circular lenses and 15-16 mm for full frame lens. Originally developed for use in meteorology and astronomy, it is used in planetariums and dome theatres to show pictures on a broad canvas.
Home » Kids Questions & Answers » Science & Mathematics Questions & Answers » What is a fish-eye lens?
World meteorological day is celebrated all across the world by the member states meteorological organizations …