Focusing a telescope by hand can cause the image to shake or even move completely out of the field of view, especially at high magnifications. With the Orion AccuFocus Electronic Telescope Focuser, those annoyances are a thing of the past. Using the push button hand controller you’ll enjoy smooth, precise focusing, without vibration. Choose any speed from coarse to very fine. The DC motor installs easily and works with most Orion telescopes and many other refractors and some reflectors.
The AccuFocus requires one 9-volt battery in the hand controller (battery not included). Motor, hand controller, motor bracket, attachment hardware, and coil cable included.
Can be used with Shoestring FCUSB for computer control.