Vixen Optics Porta II Alt-Az Telescope Mount Head (White, Head Only)

With its standard dovetail plate and 20-pound payload capacity, the white Vixen Optics Porta II Alt-Az Telescope Mount Head allows you to attach a vast array of optical tube assemblies (OTAs) outfitted with Vixen-style dovetail plates and enjoy fast and easy observations. This most basic of mount designs is ideally suited for quick astronomical or terrestrial viewing. Two control knobs, one for each axis, allow you to make small and precise adjustments for tracking subjects. Its two 120-tooth worm gears let the altitude and azimuth axes travel a full 360° circle.