Starlight Instruments Electronic Focusing System for William Optics

Starlight Instruments has developed the SI-RCEF which allows you to electronically control the helical focuser of the William Optics Red/Space Cat 51mm Telescope with a modified version of Starlight's Handy Stepper Motor (HSM). System includes the stepper motor, pulley, and bracket.

The RCEF motor is controlled with either the Starlight Instruments Electronic Focusing System (SI-EFS) or the Focuser Boss II (see Add-ons and Accessories below).