Large Accessory Ring

The Large Accessory Ring (LAR) will allow you to attach standard SCT accessories such as T-Adapters, 2" diagonals, visual backs, etc. to the rear port of your ETX (not for ETX60/70 due to lack of back focus). It also fits Celestron C90/G90, and Ganymede G90. Note: the GPS scope accessories are 2" and are not threaded; they will not work with the LAR.