A refracting telescope is an optical telescope that uses lens mostly used for long focus purposes. Here is a step by step guide to acquiring yourself one of these, with all the information on size, lens and other important details.
Channels: Experiments Aerospace Engineering
Tags: How to Buy a Telescope Telescope Buying Guide Refracting Telescopes
Uploaded by: season_31 ( Send Message ) on 23-11-2011.
Duration: 3m 24s