the rainbow shots
caustics are the brightest places in an optical field. they are the singularities of geometrical optics. the most familiar caustic is the rainbow, a grossly distorted image of the sun in the form of a giant arc in the skyspace of directions, formed by the angular focusing of sunlight that has been twice refracted and once reflected in raindrops. / rene descartes
(2 photos in total)
|
|