The design has an ultra wide field of view with no spherical aberration but does not correct chromatic aberration and was only suitable as a monochromatic astronomical astrographic camera working at a single wavelength of light.
Astrograph | astrograph |
Nearly 7000 photographic plates for asteroid orbit studies were taken with a 10-inch astrographic camera at the Goethe Link Observatory.
A great refractor was often the centerpiece of a new 19th century observatory, but was typically used with an entourage of other astronomical instruments such as a Meridian Circle, a Heliometer, and Astrograph, and a smaller refractor such as a Comet Seeker or Equatorial.
In 1887 Grubb's firm built seven normal astrographs for the Carte du Ciel international photographic star catalogue project, 13-inch refracting telescopes all designed to produce uniform photographic plates.