The Celestron AstroFi 102, an example of a Maksutov-Cassegrain telescope. (Image credit: Future) There are two main types of catadioptric telescopes — Schmidt-Cassegrain and Maksutov-Cassegrain.

The Observatory's three Maksutov-Cassegrain Questars are generally considered to be the "cadillacs" of small telescopes. Although the small aperture, 3.5 inches in diameter, only gathers half the ...

Originally $2,047.95 the Celestron NexStar 6SE Schmidt-Cassegrain Telescope and EclipSmart Solar Filter Kit is now $948.95 this Cyber Monday, but act soon.

Among the telescopes available today, the Maksutov-Cassegrain (or Maksutov, for short) ranks fourth in popularity. Russian astronomer Dmitri Maksutov (1896-1964) invented the optical design in 1944.

Save money on a Celestron Advanced VX 700 Maksutov Cassegrain Telescope originally priced at $3,379.95 and now listed as $2,599.00 online at Walmart.With a saving of $780.95, this isn't a deal to ...