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
Schmidt Artist Lofts underworld’s Green Lantern Saloon by secret tunnel to a Schmidt employee’s house on Erie Street. When Prohibition was repealed in 1933, the Schmidt Brewery resumed production of beer, and within 3 years claimed to be the 7th largest brewery in the United States, employing 400 workers and brewing over 200 types of beers. According to architectural historian Paul Clifford Larson, Schmidt Brewery was a key contributor to getting the St. Paul community out of the depression. Larson writes: ""The brewery industry was also a key player in the emergence of St. Paul from each of the major economic depressions between