Lightweight and portable, Vivitars TEL-30300 30mm f 10 Mini Telescope with Tripod offers versatility in a small package. This refractor-style telescope features an internal erector prism so it can be used for both celestial the terrestrial viewing. With a focal length of just 300mm, the optical tube assembly OTA measures just 12 inch and the tabletop tripod stands at 10 inch making this a very compact optic that can be set up virtually any place. Its fixed eyepiece produces 15x magnification and the easy-to-use slide focuser simply moves forward and back to achieve focus. Finding and tracking objects is quick and easy using the manual alt-az mount.