Orion Thin Off-Axis Guider (TOAG)

Orion Thin Off-Axis Guider (TOAG)
Item # OR-5531
  • Delightfully thin off-axis guider ideal for use with Newtonian reflector telescopes and DSLR cameras.
  • Lets you guide and capture astrophotos simultaneously through one telescope. No guide scope required!
  • 10.5mm thickness perfect for use with Newtonian reflectors which have limited back focus travel.
  • Will not interfere with the use of coma correctors thanks to its thin profile.
  • Compensates for any existing flexures that may interfere with accurate guiding and tracking.


Orion Thin Off-Axis Guider(TOAG)

Add autoguiding accuracy to any astrophotography setup with the affordable Orion Thin Off-Axis Guider. This versatile accessory lets you image and guide through a single telescope without the need for a separate guide scope!

Its thin, 10.5mm profile makes the Orion Thin Off-Axis Guider a unique and versatile offering to today's astrophotographers. It's ideal for use with Newtonian reflector telescopes which have limited "back focus" travel. Until now, astrophotographers who used Newtonian reflector telescopes had to use a separate guide scope to add autoguiding accuracy to their images. With the convenient Thin Off-Axis Guider, you can guide and capture astrophotos using one telescope - no guide scope required! Using the Thin Off-Axis Guider for Astrophotography will help you save time and reduce the weight and bulk of your imaging system while eliminating pesky tracking errors.

Designed for use with the Orion StarShoot AutoGuider (sold separately) and similar small-chip autoguiding devices, the Orion Thin Off-Axis Guider features lateral adjustment capability which can effectively double the prism's width for increased versatility.

This handy astrophotography accessory comes with a host of useful adapters including a C-mount to T-threads adapter, Canon DSLR bayonet adapter, Camera T-adapter, ultra-thin M48 male to T-adapter female adapter, 3mm Coma-Corrector spacer, 18mm spacer, and a 2" nosepiece. Thanks to these included adapters, the Orion Thin Off-Axis Guider for Astrophotography will work with many imaging systems right out of the box.

Whether you use a Newtonian astrograph, Schmidt-Cassegrain, or other telescope for your astrophotographic pursuits, get the Orion Thin Off-Axis Guider for Astrophotography and start enjoying increased accuracy in your photos of the cosmos!

Additional Information

Additional Information

SKU OR-5531
Manufacturer Orion
Warranty Limited Warranty

Customer Reviews 1 item(s)

Valuable tool
I bought this TOAG from OPTCorp, and have so far been quite pleased with it. The one thing that I will comment on is Orion's quality control. The package comes with a small Allen wrench to adjust the depth of the offset for the guide camera. The wrench they packaged with the unit was English and the size of the screws was metric. This made for a sloppy fit in the screw and an inability to tighten the set screws. It was easy enough to find a .5 Allen wrench but there really should be no excuse for sending the wrong tools with the unit. Other than this, I am very pleased with the TOAG, it is easy to use and setup, relatively, and an invaluable addition to my astroimaging arsenal.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Degrbi / (Posted on 10/30/2014)
Included Items

Included Items

  • Orion Thin Off-Axis Guider for Astrophotography
  • C-mount to T-threads adapter
  • Canon DSLR bayonet adapter
  • Camera T-adapter
  • Ultra-thin M48 male to T-adapter female adapter
  • 3mm Coma-Corrector spacer
  • 18mm spacer
  • 2" Nosepiece
  • Hex key
Questions & Answers

Product Questions

hi there will this work on a refractor telescope ???
Do you have a helical focuser that can me attached to the prism shaft? Not the Baader one because it rotates the camera as you focus from what I've read. The helical focuser would make it easy to focus a system that is typically hard to focus. Thanks.
Does TOAG fit directly M48x0.75 flattener connection? How deep is M48x0.75 thread on TOAG? (my flattener have a 5mm male M48x0.75 thread). Thanks!
Can I use the Lacerta M-GEN II camera with this TOAG.. ?
Do I need any adapters ?
I'm using the atik 314l+ for imaging and Meade DSI for guiding. Will I need to purchase any additional adapters for the DSI?
I am using Skywatcher Refractor Espirt 100ED, field flattener came with the scope and a canon dslr..
do I need any extra adapters to use this TOAG?
What adapters are needed to use the TOAG in the optical train with a Celestron SCT 6.3 focal reducer?
Support / Downloads