Meade Polaris 90mm German Equatorial Refractor Telescope #216003 is a highly portable and economical model that makes a terrific first telescope. Lens diameter is 90mm (3.5 inch). Telescope focal length of 900mm, f/10. This large refractor with its increased light gathering ability will let you see greater detail on the Moon, view the main division in the rings of Saturn, separate the cloud belts of Jupiter and all four primary moons in orbit around Jupiter. The increased diameter also makes it a great performer for deep sky objects like clusters, galaxies and nebulae with its sharp, bright fields of view. Includes PC compatible astronomy software and instructional DVD. Features a 1.25" rack-and-pinion focuser, a sturdy German Equatorial Mount with dual slow motion control knobs for fine centering and tracking of objects, three 1.25" eyepieces (MA6.3mm (143X), MA9mm (100X) and MA26mm (35X)), 2X Barlow to double the power of each of those eyepieces, easy to use red dot viewfinder, diagonal mirror, height adjustable full size tripod with tubular steel legs and a convenient accessory tray. Bonus erecting prism included, to provide a fully corrected up/down and left to right image for daytime use. Product carries full one year Meade factory limited warranty.