Celestron Focuser Retrofit Kit for Rowe-Ackermann Schmidt Astrograph (RASA) 11The Rowe Ackermann Schmidt Astrograph (RASA) 11 comes with a FeatherTouch MicroFocuser pre installed which is excellent for providing precise manual focusing, but is not compatible with the Celestron Focus Motor. For RASA 11 users who wish to add the Focus Motor to their setup, this retrofit kit makes the process easy. The kit includes everything you need to safely remove the FeatherTouch MicroFocuser and replace it with the standard Celestron focuser