Celestron Omni XLT 127mm Schmidt-Cassegrain Telescope 11084 is a versatile telescope with high quality optics and components, perfect for users of any level. The Celestron Omni XLT 127mm Schmidt Cassegrain Telescope is a Catadioptric Telescope that utilizes both lenses and mirrors to form an image. This Schmidt Cassegrain Telescope combines the advantages of a Refractor Telescope and Reflector Telescope while also eliminating their disadvantages. These Schmidt-Cassegrain Telescopes offer the clarity and contrast of Refractors with the low image aberration of Reflectors. In addition, the Celestron Omni XLT127 Telescope by Celestron has a 127mm aperture giving a superb image of the Moon, Saturn and its rings, Jupiter and its moons, nebulae and star clusters. Celestron Omni XLT Series Telescopes have StarBright XLT Optical Coatings that enhances light transmission, providing maximum contrast and image sharpness. The StarBright XLT Coatings also present a clear an unblurred image. These Celestron Telescopes have a 25mm multi-coated eyepiece that is capable of a high 50X magnification. The Celestron Omni XLT 127mm Telescope also features the stable platform of the CG-4 German Equatorial Mount. This Equatorial Mount is responsible for accurately locating and tracking objects due to its setting circles and slow motion controls. The Celestron Omni XLT127 Telescope is also the perfect telescope for astrophotography. When used with the optional dual-axis motor drive (Model #93522) and the polar axis finder (Model #94221) to track objects for long exposure photography, these Telescopes can produce superior quality photographs. With these features of high quality optics and materials, the Celestron Omni XLT 127mm Schmidt-Cassegrain Telescope 11084 is an excellent all-purpose telescope for deep sky observing, terrestrial viewing, and astrophotography.