Schmidt camera 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 examples are the Samuel Oschin telescope (formerly Palomar Schmidt), the UK Schmidt Telescope and the ESO Schmidt; these provided the major source of all-sky photographic imaging from 1950 until 2000, when electronic detectors took over. A recent example is the Kepler spacecraft exoplanet finder. Other related designs are the Wright Camera and Lurie–Houghton telescope. The Schmidt camera was invented by German-Estonian optician
Gregorian mission the larger villages of the cities' territorial rule. The seat of the bishopric was established in the city and all churches belonged to the diocese, staffed by the bishop's clergy. Most modern historians have noted how the Gregorian missionaries come across in Bede's account as colourless and boring, compared to the Irish missionaries in Northumbria, and this is related directly to the way Bede gathered his information. The historian Henry Mayr-Harting argues that in addition, most of the Gregorian missionaries were concerned with the Roman virtue of "gravitas", or personal dignity not given to emotional displays, and this would have