Buy from Amazon.com : http://fave.co/19qJS46 <br /><br />Orion 13032 2-Inch Dual-Speed Crayford Refractor Telescope Focuser<br /><br />Product Description : <br />Give your Orion refractor telescope a smooth dual-speed focus adjustment upgrade <br />Crayford-style focuser provides smooth roller bearing motion without image shift or backlash <br />111 fine focus ratio allows minute focus adjustments to provide crisp detailed views <br />Precision drop-in replacement for standard focusers on many Orion refractor telescopes <br />Accepts both 2 and 125 eyepieces diagonals and telescope accessories
