Make your stargazing and astrophotography experiences more immersive with the Cgx 800 Hd, an 8"" EdgeHD Schmidt-Cassegrain Telescope. This advanced telescope combines Celestron's cutting-edge Cgx computerized equatorial mount with the highly acclaimed EdgeHD optical system. The Cgx 800 Hd boasts an 8-inch aperture and is equipped with our premium StarBright Xlt coatings. This combination provides over 800 times the light gathering power of the naked eye, making it the most portable and lightest telescope in its class. The EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope designed to produce aberration-free images across a wide visual and photographic field of view. Its optical system is engineered to reduce more than just off-axis star coma it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view. Unlike many optical designs that claim to be ""astrographs"" but only produce pinpoint stars across a curved focal plane, EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This ensures visibly sharp stars across some of the largest Ccd chips available today. The telescope tube has been redesigned to maximize your optical experience every night. It features mirror clutches with flexible tension that hold the mirror in place and reduce image shift during long exposure astro-images. The tube also includes cooling vents on the rear cell that allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter, ensuring warm air is let out without letting dust in. The Cgx 800 Hd is Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third-party lens accessory for ultra-fast f/2 wide field imaging.