The Focusmate Driver 10:1 from Tele Vue is specifically made for the Tele Vue TVNP-127is Telescope with a serial number of 1175 or higher. The Focusmate Driver is an accessory that provides vibration-free focusing in very small increments. It provides a variable-speed, electronic motor control of the 10:1 Focusmate Fine Focus Accessory via a hand-held controller or computer control.
A tap on the button permits vibration-free focusing in steps as small as approximately 0.0005 inches. Switching between manual and motor focusing is easily done with a unique, quick disconnect that doesn't require any tools. A variable-speed, forward/reverse, battery-operated hand-controller is included. The Focusmate Driver can be used on left or right-side mounted Focusmates.
Motor-ring mount for attaching the driver motor to the telescope
Quick disconnect for changing between motorized and manual focusing
Vibration-free motor-drive unit for smooth and precise focusing
Two-button hand-controller with variable-speed knob