MaksutovCassegrain Telescope
A Maksutov-Cassegrain telescope is a type of catadioptric telescope that uses a combination of lenses and mirrors to fold the optical path, allowing for a compact and portable design. It typically features a thick meniscus corrector lens at the front of the telescope, followed by a spherical primary mirror and a secondary mirror that reflects light back through a hole in the primary mirror. This design results in a long focal length in a short overall tube length, making Maksutov-Cassegrain telescopes popular among amateur astronomers for their versatility and high image quality.