The control knob is used together with the manual AP fine adjustment module for making fine adjustments to the R.A. and DEC.
The control knob is simply attached to the worm shaft and stays in place automatically.
Can be used on the GP, GPDX, GP2, GPD, Porta II, Mobile Porta and AP mount system.
- Compatible with AP, GP, Porta and GPD mounts
- Dimensions: Diameter: 40x51 mm
- Weight: 18 g
- Vixen fine adjustment knob