What are the types of telescopes and Cameras?
From Answers.com: Optical telescopes Three main types of optical telescopes – and these are divided into subgroups. They all have their different advantages and disadvantages and they are used in different areas of astronomy. Refractor telescopes (Dioptrics) * Non-achromatic o Galilean telescope + Galileoscope o Keplerian Telescope + Aerial telescope * Achromatic telescope * Apochromatic * Superachromat * Varifocal gas-lens telescope Reflector telescopes (Catoptrics) * Newtonian telescope o Dobsonian telescope * Gregorian telescope * Cassegrain telescope o Ritchey-Chrétien telescope o Dall-Kirkham * Large liquid mirror telescope * Pfund telescope * Schiefspiegler telescope * Toroidal reflector / Yolo telescope * Herrig telescope * Stevick-Paul telescope Combined Lens-Mirror Systems (Catadioptrics) * Schmidt camera * Schmidt-Newton telescope * Schmidt-Cassegrain telescope * Lurie Houghton * Maksutov telescope * Modified Dall-Kirkham telescope * Klevtsov-Cassegrain * Argunov Cassegrain t
