Hand Controller Focuser Astromania Accufocus Focuser AccuFocus Focuser - Get Smooth Celestron Focuser 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 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 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 Astromania 2 Helical Micro Focuser with M48-thread and 0.1mm Scale for Telescope - sharper 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 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 The AccuFocus Electronic Focuser with pushbutton controller delivers precise focus for your telescope. Its DC motor lets you adjust from coarse to fine settings, while the hand controller offers smooth, vibration-free movements But with the AccuFocus electronic focuser, those annoyances are a thing of the past. It's powered by one 9-volt battery (included) in the hand controller. Choose any speed from coarse to very fine.
