The Schmidt-Cassegrain design is a high quality reflecting telescope design, producing top notch Cassegrain Telescopes that we at OPT are happy to offer. OPT offers a wide array of high quality Cassegrain Telescopes from name brands such as Meade, Celestron, Takahashi and many more. The Cassegrain is a type of reflecting telescope which employs a combination of a primary concave mirror and a secondary convex mirror into its design. In the classic Cassegrain telescope a parabolic primary mirror has a hole placed in its center. While this may seem like a very strange thing to do, the incoming electromagnetic waves are actually captured by the parabolic mirror’s edges and re-directed to the hyperbolic secondary mirror where they converge. The light (or wave) is then refocused back towards the hole where it converges to a focal point – the eyepiece. This “folding” technique makes for a very compact design which delivers longer focal lengths and permits higher magnification factors. It emerged over time as one of the most popular designs in the world because it offered major improvements over original refractor designs. Their sharp, high contrast images on any subject make the Schmidt-Cassegrain Telescope (SCT) or Maksutov Telescope (Mak) a good choice for the intermediate to more experienced observer.