Celestron 7-Inch Maksutov-Cassegrain Telescope Optical Tube AssemblyThe Celestron 7 Inch Maksutov Cassegrain Telescope Optical Tube Assembly is specifically designed to provide highly detailed, superior contrast views of planets and other small celestial objects. Add this Mak Cass optical tube to a robust computerized equatorial mount and tripod (sold separately) for close up views of the Moon's landscape, including craters and maria, as well. For deep sky viewing, the Maksutov design is optimally suited for observing