The Aim 50mm Refractor Telescope from Carson is rugged, trouble free and easy to operate, making it perfect for the beginning observer. It features a focal length of 350mm, two eyepieces that provide 18x and 40x magnifications, and an adjustable table-top tripod for steady viewing. A 2x Barlow lens effectively doubles the magnification of each eyepiece for a total magnification range between 18x and 80x. The included 90° erect-image diagonal makes observing more comfortable.