More on Amazon.com : http://www.amazon.com/gp/product/B000YPTZU2?tag=thefatkidin06-20 <br /> <br />Orion 7385 13-Inch Dovetail Mounting Plate <br /> <br />Provides a platform for coupling telescope optical tubes to Orion AstroView SkyView Pro Sirius and Atlas equatorial EQ telescope mounts <br />Attach telescope tube rings sold separately to the dovetail mounting plate for easy no-tools attachment of the telescope to an Orion EQ mount <br />Thirteen inch long plate is especially useful for longer focal length reflector and refractor telescopes <br />Made of extruded anodized aluminum <br />Includes four optical axis offset adjustment screws
