Celestron Omni XLT 150 Telescope High quality telescope optics that start with each lens and(or) mirror being hand selected so only the finest grade of optical glass is used StarBright XLT coatings provide maximized light transmission for great view quality CG-4 German Equatorial mount with setting circles and slow motion controls - to accurately locate and track sky objects Easy no-tool telescope setup lets you spend more time observing Includes Thy Sky Level 1 planetarium software with 10,000 object database and enhanced images