More from Amazon.com : http://www.amazon.com/gp/product/B001OSGV7S?tag=purrfectcatdi-20

Orion 52072 2-Inch to 1.25-Inch Precision Centering Adapter

Handy adapter precisely centers any 125 collimating device imaging camera nosepiece or eyepiece in a 2 focuser
Scratch-free helical compression mechanism centers the 125 telescope accessory as it is tightened in place
Centers telescope eyepieces and accessories better than thumbscrew-equipped holders which can push inserted items off to one side of the light path
Made of machined black-anodized aluminum with an easily adjustable knurled twist-lock ring
Barrel is threaded for use with 2 Orion eyepiece filters