Obsession 30" Encoder Mount Hardware Bundled Special System


In order to bring computerized pointing to your Obsession 30", you will need to fit a pair of devices known as optical encoders to each axis of your mount. Part number pn-obs-30-bspec is a specially priced bundled solution that provides an Argo Navis™ Digital Telescope Computer, the optical encoders and all the necessary mounting hardware specific to your Obsession 30" Dobsonian along with the encoder cable that is used to connect between each of the optical encoders and the Argo Navis™ Digital Telescope Computer itself.

Bundled Special System contents

  • Argo Navis™ Digital Telescope Computer.
  • Encoder mount hardware designed specifically for the Obsession 30" mirror Dobsonian mount.
  • 2 x Optical Encoders.
  • An Encoder Cable for interfacing the Argo Navis™ to each of the supplied encoders.


  • Az axis resolution : 32000 steps effective.
  • Alt axis resolution : 32000 steps effective.
  • Highest quality machined components.
  • One year limited warranty.


The encoder kit is easy to install and comes with simple installation instructions including diagrams.
Click here for a scanned image of the installation diagram.


Please email us at for a lead-time estimate on this kit.


Current pricing for this bundled product can be found by using the Bundled Special System including Argo Navis encoders, encoder mount hardware & encoder cable pull-down menu on our purchasing page.