Focusmate Telescope and Observatory: DurangoSkies.com

Focusmate	$195.00
[TFM-2000]

Now you can add fine focusing capability to any Tele Vue telescope having the traditional 5-hole knobs.

Features:

Attractive polished stainless steel housing and coarse focus knob with grip ring to match the size and feel of the standard knob
Mounts easily to either left or right side of focuser
Smooth 6:1 planetary ball system for fine focus (particularly valuable for imaging applications)
Large clear-anodized fine focus knob with embedded Tele Vue logo button
Hardware includes Delrin attachment block, spacer block, and instructions