Schmidt camera optical axis of the Schmidt design creates a Schmidt-Newtonian telescope. The addition of a convex secondary mirror to the Schmidt design directing light through a hole in the primary mirror creates a Schmidt-Cassegrain telescope. The last two designs are popular with telescope manufacturers because they are compact and use simple spherical optics. A short list of notable and/or large aperture Schmidt cameras. Schmidt camera A Schmidt camera, also referred to as the Schmidt telescope, is a catadioptric astrophotographic telescope designed to provide wide fields of view with limited aberrations. The design was invented by Bernhard Schmidt in 1930. Some notable
Ruth A. M. Schmidt of and sympathetically associated with the Washington Bookshop Association.” Asked what other organizations she belonged to, Schmidt responded:“I have a list—the Washington Association of Scientists, Geological Society of Washington, Paleontological Society of Washington, Society of Economic Paleontologists and Mineralogists (SEPM), American Registry of X-Ray Technicians, Red Cross, Community Chest, Blue Cross, and Sigma Xi.”On January 15, 1951, E. L. Compton, Secretary of Interior Department, sent Schmidt a letter that cleared her, stating that “no reasonable ground exists for believing that you are disloyal to the Government of the United States.” In 1954, Schmidt received another letter from the Department of