I have purchased the Orion Thin Off-Axis Guider to use with this as my guide camera. More info on this OAG is at https://www.telescope.com/Orion-Thin-Off-Axis-Guider-for-Astrophotography/itemGUID/195ac83e4ad644fa8bd503f16cb4d947/p/102812.uts
I am wondering if I need any spacers or adapters or anything for this to work with my ZWO ASI290MM guide camera connection. It's being used in conjunction with my Celestron C8 SCT scope, my Canon 60Da (44mm back focus) and a T-Adapter with 50mm of Back Focus. The Orion OAG has a built-in T Ring and uses 10.5mm. My optical tube has a back focus requirement of 105mm to 127mm, with 105mm being the sweet spot.
Here is the list of accessories that arleady come with the Off Axis Guider:
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
Thanks,
Bryan