Sky-Watcher Skymax Maksutov-Cassegrain 90mm Telescope – S11500 Sky-Watcher

Sky-Watcher’s Skymax 90mm Maksutov-Cassegrain scope offers the same ultra-sharp views you’d get from a 90mm refractor, but without the size, weight, and price tag.

Versatility meets portability

The Maksutov-Cassegrain optical design is a favorite for both terrestrial and celestial use. Its correct image optics and high-contrast views make it ideal for use as a spotting scope. With 90mm of aperture, this telescope can easily go from observing deer at long range during the day to viewing the Moon and nebulae at night. But the Maksutov-Cassegrain truly excels when viewing or imaging the planets, thanks to its f/13.9 focal ratio.

Incredibly, the 90mm Skymax weighs in at under 4 lb. If you need to limit the size and weight of your telescope—whether you’re carrying it on an airplane or taking it camping—this is an excellent option.

About the Maksutov-Cassegrain

Although it’s not as widely known as the refractor or Newtonian reflector, the Maksutov-Cassegrain offers superb optical performance. Using a Maksutov corrector lens on the front of the optical tube and a series of mirrors, “Mak-Cass” telescopes correct for visual defects like chromatic aberration and coma. The result is bright images, pinpoint stars, and high contrast views at a fraction of the price of competing designs.

Accessories included

The 90mm Sky-Watcher Skymax includes several high-quality accessories: a red dot finderscope to zero in on your target with ease, 25mm and 10mm 1.25” eyepieces, and a 1.25” star diagonal for more comfortable viewing. The scope is also equipped with a standard ¼-20” threaded bolt hole, so you can mount it on any photographic tripod.