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
Gregorian Consortium doctorate (ICOD). Gregorian Consortium The Gregorian Consortium is a collaborative association of three pontifical universities/institutes in Rome. In 1930 the motu proprio "Quod maxime" of Pope Pius XI associated the Pontifical Gregorian University (Greg), the Pontifical Biblical Institute (Biblicum), and the Pontifical Oriental Institute (Orientale) into a university consortium. All three institutions belong to the Holy See and are entrusted to the Society of Jesus. The Gregorian has departments of philosophy and theology, offering degrees at the bachelor, licentiate, and doctorate levels. Its international faculty serves around 3800 students from over 150 countries. Among its notable alumni are seventeen popes,