ZWO Off-Axis Guider

ZWO Off-Axis

New product

ZWO Off-Axis Guider

More details

5 Items


139.00 CHF tax incl.

More info


  • Lightweight and only 16.5mm thick!
  • Large prism - 8x8mm
  • Guide through your main imaging scope - no guide scope required!
  • Multiple adapters available including T2, M42 and M48 making it easy to fit to most cameras and telescopes
  • Fully compatible with all ZWO ASI cameras
  • Good stability - strong, stiff connection to the telescope

Adapters Included

Setup Guide

1. Calculate the correct distance for your imaging train. For example, you need to attach a 21mm extension to the ASI071 to reach 55mm back focus (17.5mm + 21mm + 16.5mm = 55mm).

2. Take off the guider prism part from the OAG and attach the OAG body to the telescope.

3. Insert the prism back into the OAG body.

4. Mount the guide camera.

5. Screw the T2 or M48 adapter on the imaging camera according to your cameras mounting type.

6. Mount the camera on to the OAG in the correct position and lock the 3 screws.

7. The final setup.

8. Check that the prism does not block the imaging area.

9. Use the guiding screw to adjust the guiding cameras focus. This is best done during daytime to make sure both the imaging and guiding cameras can focus at the same position.