MSM20---Micro Touch Focusing System - Stepper Motor for 2.0" Feather Touch focusers, MPA, Televue, Takahashi retrofit focusers, and SCT Micro Feather Touch® Focusers Extra ...
MSM30---Micro Touch Focusing System - Stepper Motor for 2.5" and 3" Feather Touch focusers, and 2,7" Astro-Physics Focusers Extra stepper motor unit for the MicroTouch ...
MSM20---Micro Touch Focusing System - Stepper Motor for 3,5" Feather Touch focusers and 4" AstroPhysics Focuser Extra stepper motor unit for the MicroTouch Autotelescope focuser...