BStarlight Instruments Starlight Instruments Feather Touch Micro Focuser for Celestron 11 Inch CPCEDG HD ReviewbP PP Starlight Instruments Starlight Instruments Feather Touch Micro Focuser for Celestron 11 Inch CPCEDG HD PFor Celestron CPC 11 and 11 EDG HDP10:1 Dual Speed FocuserPReplaces stock focusing knobPSimple to installP