Astromania AccuFocus Electronic Telescope Focuser - Get Smooth, Precise Focusing, Without Vibration by Using The pushbutton Hand Controller

Astromania AccuFocus Electronic Telescope Focuser - Get Smooth, Precise Focusing, Without Vibration by Using The pushbutton Hand Controller

Motorized electronic telescope focuser is the DC motor that is simple to install and makes achieving sharp focus easy; keep in mind that best focus will be achieved by focusing on a bright star Use the pushbutton hand controller for smooth; precise focus adjustments without vibration; which can be convenient and easy to operate The control box requires a standard 9V battery to operate; The 9V battery goes into the battery compartment in the rear of the control box; which can choose speeds from coarse to very fine with the adjustable speed control knob on the box Includes a variety of parts parts such as brackets; hardware; coil cables and so on; please note be sure to loosen the two set screws which connect the shaft coupler to the focusing shaft before attempting to manually focus with the focus knob Accufocus electronic focuser cannot be used on telescopes with APO two speed focusing; but only on telescopes with single speed focusing; such as brand of refractors and reflectors in 60-127mm range; please feel free to contact us if have any question 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. But with the AccuFocus electronic focuser, those annoyances are a thing of the past. Using the pushbutton hand controller you get smooth, precise focusing, without vibration. Choose any speed from coarse to very fine. The DC motor installs easily and works with many Celestron, Skywatcher, meade and Orion telescopes. It's powered by one 9-volt battery (included) in the hand controller. Bracket, hardware, and coil cable are also included.