ZWO Off Axis Guider (OAG)

ZWO Off Axis Guider (OAG)
ZWO Off Axis Guider (OAG)ZWO Off Axis Guider (OAG)ZWO Off Axis Guider (OAG)


In stock - Shipped 1-2 working days.

Model:  zwo_oag
Part Number:  Z485-OAG
Brand:  ZWO



  • OAG Body with M48 Telescope Adapter
  • 1.25" Eyepiece / Camera Holder
  • 5mm T2 Extension
  • M42 Camera Adapter
  • M48 Camera Adapter
  • M42 Telescope Adapter

New! ZWO off-axis guider (OAG) for astrophotography.


  • 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

  1. 1.25" Eyepiece / Camera Holder
  2. 5mm T2 extender for ASI guide camera with a back focus of 12.5mm. E.g. ASI120, ASI224MC and ASI290.
  3. M42 Camera Adapter
  4. M48 Camera Adapter
  5. OAG Body with M48 Telescope Adapter
  6. M42 Telescope Adapter

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.

There are currently no specifications available for this product.

There are currently no downloads or manuals available for this product.

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December 2017 / View Older
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