The Revolution C mount to 2" and T adapter is a versatile tool to have in your Video Astronomy toolbox! 

First of all it allows you to insert the Revolution Imager or other C mount camera into a 2" focuser deeper than using a regular 2" to 1.25" convertor this can help if you are having trouble bringing the camera to focus in your telescope with equipped with a 2" focuser but that's not all - the adapter is also threaded internally with a 1.25" thread allowing you to use 1.25" filters or focal reducers!

The adapter is also threaded internally with a "T" thread allowing you to attach the Revolution Imager to a T-threaded zoom eyepiece giving you greater magnifications!