ZWO Off-Axis Guider - OAG

No Ratings Yet

Write a Review


  • Your Price:
  • $128.00
  • + FREE Shipping

Leave us your email, and we’ll let you know when this item is back in stock.

  • The ZWO OAG Off-Axis Guider allows you to simultaneously guide and capture images of night sky objects through a single telescope without a guidescope
  • Machined aluminum construction with black anodization offers durability and an appealing look
  • Package includes several different adapters for connecting a guide camera to your ZWO ASI imaging camera
  • Works with all ZWO ASI cameras
Questions? Let our experts help!
  • Description

    ZWO OAG Off-Axis Guider

    This Off-Axis Guider is made by ZWO and will enable you to connect a guide camera to your imaging camera, and even includes an array of adapters to allow you connect to a wide range of cameras. Now you are able to guide and capture images of celestial objects simultaneously through one telescope. No guide scope required! The ZWO OAG has a large 8mm x 8mm prism and is lightweight yet tough. It is machined out of aluminum and black anodized for long wear and beauty. The main portion of the OAG is 16.5mm thick, and, along with the required machined adapters, will provide a solid connection at all points.

    The ZWO OAG is compatible with all ZWO ASI cameras. To make sure your system comes to focus, you will need to calculate the required distance for your imaging train, and then use the proper extender. To use the ZWO OAG, remove the guider prism portion of the system from the OAG body, and attach the OAG portion to your telescope. Next, insert the prism back into the OAG body, and then mount your guide camera to it. Now, attach the T2 or M48 adapter (choice is dependent on the type of mount the camera has) to your imaging camera, and then mount it to the OAG and lock the retaining screw.

    To make sure the imaging camera and the guide camera are both on the same focal plane, use the guiding screw to adjust the guide camera's focus. This step is easier to do during the day because you need to make sure the prism is positioned so that it does not block your imaging area.




    Supplier SKU


    What's Included

    • ZWO OAG body
    • 1.25” holder for 1.25″ size body guide camera
    • 5mm T2 extender for ASI guide camera whose back focus distance is 12.5mm such as ASI120, ASI224MC, ASI290 etc.
    • M42 adapter
    • M48 adapter
    • M48-M42 adapter

    • Hexagon Wrench

  • Dimensions & Specifications

    • Thickness: 16.5mm
    • Prism Dimensions: 8mm x 8mm

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    2 years

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

  • Stars


    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars

    Most Helpful Reviews

    Most Critical Reviews

    All Reviews

    Displaying Reviews 1-10 of